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Porsche 928: Buying guide and review (1977-1995)

Porsche 928: Buying guide and review (1977-1995) Classic and Performance Car
Porsche 928 Porsche 928 Porsche 928 Porsche 928 Porsche 928 Porsche 928 Porsche 928
We’ve said it before, and we’ll undoubtedly say it again: The Porsche 928 is a great car. Undervalued for years, this highly accomplished GT has lived in the shadow of its smaller and (admittedly) more exciting 911 sibling since it was launched.
 
Designed to replace the aging 911, Porsche spent a lot of time and money making sure that this front-engined, V8-powered coupe would blow the world away. It was an engineering masterpiece, and was such a groundbreaking effort that it actually took the 1978 European Car of the Year award. 
 
The problem is, Porsche had built the ultimate grand tourer – not an out-and-out sportscar. Traditional 911 buyers simply weren’t interested, but as a comfortable, great looking and fast continent crusher it was almost unbeatable.
 
So advanced was this Porsche at launch, the 928 remained in production – basic design effectively unchanged – for around 17 years. Of course the 928 evolved over the years with added spoilers, more equipment and and more power, but the basic formula of quick and comfortable ability remains a constant through the range. 
 
What’s not to like? ‘Thirst and complexity’ are the usual retorts. It’s true that 20mpg is a best-case scenario for any 928 – but with most of the survivors now being kept as second cars, that’s less of an issue. And while there seems to be an awful lot of engine shoehorned under the bonnet, it’s really a straightforward design that can rack up enormous mileages. 
 
Of course, the 928 was an expensive car when new, with commensurately high servicing bills. But today’s non-franchised specialists charge more reasonable prices and there are plenty of secondhand parts around – sadly, good cars are still being stripped out for track day or race use. 
 
Despite its recently discovered potential as a racing car, the 928 was always marketed as a GT and about 80 per cent were sold with automatic transmission. Manuals are now sought after for track days, but the 928’s big V8 is ideally suited to an auto ’box and gives a relaxing drive. 
 

Which 928 to buy?

 
Chances are that if you fancy a 928 you’ll already know what you want: either the design statement of the original car (no spoilers, no side strips, Pascha interior, telephone-dial alloys) or the sheer speed and greater luxury of the S4-and-later models. Buyers tend to fall into one or other camp. 
 
The late-’70s cars are by far the rarest now and are the only 928s likely to have any long term investment potential. They are not particularly fast by modern standards but they’re the simplest and cheapest to run. 
 
Moving on a few years, a 1980s S or S2 still has a certain period appeal, retaining the egg-shaped rear of the original car. Among the restyled cars, the S4 is the sensible buy – as its engine is bulletproof – while the GTS is the most hardcore and most expensive to fix, having unique brakes and engine. 
 

Performance and specs

 
Engine 4474cc, 16-valve SOHC V8
Power 237bhp
Torque 268lb ft
Top speed 142mph
0-60mph 7.5secs
Fuel consumption 21mpg
Gearbox Five-speed manual/Three-speed automatic
 

Dimensions and weight

 
Wheelbase 2500mm
Length 4448mm
Width 1836mm
Height 1313mm
Weight 1451kg
 

Common problems

 
• The 928 bodyshell was galvanised right from the start of production, so structural rust is rare. Early cars will typically show the odd bubble around rear windows or hatch (where trim clips have broken the galvanising), but usually corrosion is restricted to paint scabbing on the alloy bonnet, front wings and door skins. Accident damage is obviously where trouble can start, and even a proper repair from 10-15 years ago can start to show its age.
 
• Mechanical parts also last well. Cambelt failure is the biggest danger: on 4.7-litre and later engines the valves can then collide with pistons (4.5s aren’t affected). The belt should be changed every four years or 60,000 miles. It’s wise to renew the water pump at the same time. 
 
• When the GTS was launched, a number of engines suffered from excessive oil consumption due to porous cylinder liners. Many cars had new engines from Porsche, however if the car you’re looking at wasn’t one of them, ask the owner about oil usage. If it uses an excessive amount today it could spell big bills in future. 
 
• The 928’s suspension hardly changed during production, which means that you could, in theory, fit GTS suspension to a 1970s car. OE-spec dampers are now hugely expensive, although specialists do offer aftermarket sets for considerably less. 
 
• The 928 has its gearbox mounted just ahead of the rear diff, and it’s connected to the engine by a torque tube. Manual ’boxes don’t have the sweetest changes but are tough, while the automatics are Mercedes-Benz units, so very reliable. However, failure to check the flex plate tension regularly can lead to a worn crank thrust bearing and, ultimately, a wrecked engine block. 
 
• 928s do suffer electrical gremlins if not driven for any length of time, but the wiring is actually quite easy to trace. Make basic checks on the operation of the electric windows, mirrors, seats, headlights and central locking, as these could be costly to rectify if paying a specialist. 
 
• Air-conditioning will rarely work on an older car and may cost £500-600 to repair. Interiors last pretty well but the 1970s pyschedelic-check trim known as Pascha eventually falls apart at the seams. While good condition second hand items are nearly impossible to find, reproduction fabric is now available through specialists. 
 

Model history

 
1977-1982: 928 launched with new water-cooled, 4.5-litre V8 engine giving 240bhp and 140+mph top speed, five-speed manual or three-speed auto transmissions.
 
1979-1984: 928S gains bigger, 4.7-litre engine, plus small front and rear rubber spoilers and side-protection strips. Power now 300bhp and top speed 152mph.
 
1984-1985: S2 has 310bhp; auto option now a four-speed.

1985: US-only cars gain new 5-litre V8 with DOHC , four-valve heads and unofficial ‘S3’ title. 
1986-1992: S4 restyled with smoother front end, wraparound tail-lights and big rear spoiler. 5-litre V8 already used in States gives 320bhp. Digital dash and auto ’box standard for ’89-on S4. 
 
1989-1992: Manual-only GT introduced with stiffer suspension, wider wheels and 326/330bhp.
 
1992-1995: GTS has 5.4-litre V8, 340bhp and ‘Cup’ alloy wheels.
 

The rivals

 
Jaguar XJ-S – If you want a great-looking GT, the XJ-S is right up there with the 928 for style. This British choice is less unreliable than you might think, but the repair costs of a poorly maintained example (of which there are many) can be even more eye-watering than the Porsche. 
 
BMW M635CSI – Perhaps lacking the drama of the Porsche’s stunning aesthetic, this big BMW coupe is perhaps more of driver’s choice. That’s not to say it doesn’t look great! 
 
Mercedes-Benz 560SEC – Comfort and speed don’t come much more easily than in the big Benz, and if you like toys this is the car for you. This was the most expensive car Mercedes built at the time, and as well as offering fantastic luxury it’s beautifully built. 
 
Ferrari Mondial – This four-seater Ferrari might be a little unloved, but at the end of the day it’s still a Ferrari…
 

Owners clubs, forums and websites

 
• www.928.org.uk – Porsche 928 community
• www.porscheclubgb.com – UK-based Porsche owners club
• www.porscheownersclub.org.uk – Free to join UK Porsche club
• www.tipec.net – The Independent Porsche Enthusiasts Club
 

Summary and prices

 
Porsche 928 prices have been generally very steady for the past decade, with a very gentle upward trajectory for the most desirable examples. To some extent, the condition is more important than model or year. A superb car, early or late, might sell for up to £30,000, but good usable examples start at around £10,000. 
 
Very early cars start from around £4000 for something needing work (although projects can still be picked up from upwards of £2000), with the later models becoming more expensive as the power and spec levels increase. The advice is to steer clear of anything too cheap, as the potential bills associated with these will often be substantial. 
 
The most valuable is the high-performance GTS model, with prices usually starting from £15,000-£25,000. Perfect examples, especially with low mileages, are often advertised at more than £60,000.
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Last updated: 8th Mar 2017
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Porsche 928
14450 75990 GBP
  • Porsche 928

    £49,995 £49,995

    We are very pleased to offer this stunning and rare 928GT One of just 38 right-hand drive and manual gearbox 928 GTs and finished in the highly desirable Guards Red with Linen Leather 71,000 miles with a fully documented history, 5 Speed manual gearbox, Limited Slip differential, Full electric seats, Height adjustment, Air conditioning, Electric Sunroof, Electric Door Mirrors, Porsche book pack We sent the car Porsche specialist Strasse for a complete check over and there 117 point check and the fitment of a new clutch. One of the finest examples on the market and possibly one of the best sounding v8 cars you can buy! An incredibly clean example requiring absolutely no spend.

    • Year: 1990
    • Mileage: 71000 mi
    • Engine size: 5
    For sale
    £49,995 £49,995
    Yorkshire Classic & Sports Cars
    01765 609798 View contact number
  • Porsche 928 S Coupe 1987

    POA POA

    Porsche 928 S Coupe version V8 1987 in very good condition 1987 Porsche 928 S Coupe. Both the body and interior are in a very beautiful condition. Paint in the colour champagne metallic and the optional full leather brown interior. This german sportscar was specially built. The aluminium water cooled 4664 CC V8 engine was built in the front of the car and the automatic gearbox was above the rear axle. This for better weight division. The car has electric adjustable seats, electric windows and sunroof. So a very beautiful, very luxurious and excellent driving Porsche 928. Car has Holland title and Holland mot/tuv. Easy to register in every EU country. You do not need to pay any importtaxes. We can help with transport.

    • Year: 1987
    For sale
    POA POA
  • Porsche 928

    £16,950 £16,950

    Excellent early example, saved from a field after 15yrs. It has been Re-sprayed,replaced interior due to original being rotten, new Veloce wheels and new tyres. (We still have the original Teledial wheels). New EBC Yellow stuff pads, new discs, new ride-height adjustable Bilstein suspension, New braided brake lines. Engine and gearbox oils changed. Alcantara steering wheel, door trims and centre console lids front and rear. HPI, DVLA and car checks done. We cannot verify mileage further, we only have a few old MOT's, all other history was lost, we do have some paperwork.

    • Year: 1980
    • Mileage: 8940 mi
    • Engine size: 4.5
    For sale
    £16,950 £16,950
    Louise Hicks
    Louise Hicks
  • Porsche 928

    £49,950 £49,950

    Full Leather, Memory Seats, Electric Seats, Sunroof Boss Motor Company are extremely proud to present this beautiful 1992 Porsche 928 - S Series 4.1 OWNER and Having covered only 22,000 Miles from new and complimented by a Full Documented Service History (to include a large file of bills).Finished in arguably the best colour scheme of Slate Grey Metallic with Full Black Leather throughout.Specification Includes:Tyre Pressure Monitoring System, Electric memory seats, Electric sunroof, Electric mirrors, 8 speaker stereo system, Trip computer, Rear spoiler, Air conditioning, Tool kit, Space saver spare wheel.Will come with a NEW Porsche Centre Service and 12 Months 'No Advisory' MOT.VIEWING STRICTLY BY APPOINTMENT ONLY - WILL COME WITH 12 MONTHS RAC WARRANTY AND 12 MONTHS BREAKDOWN COVER AND A NEW MOT - PART EXCHANGE WELCOME- FINANCE AVAILABLE THROUGH OUR WEBSITE.

    • Mileage: 22000 mi
    For sale
    £49,950 £49,950
  • Porsche 928 GTS

    POA POA

    Vehicle Description Year – 1992 Engine Size – 5.4 Mileage – 15,000 Colour – Amazon Green Interior – Classic Grey With declining sale from the Porsche 911, Porsche decided that they were going to discontinue the 911 and would replace by the Porsche 928. This new car came with a new liquid-cooled, front-engine car was designed to address the shortcomings of the air-cooled rear-engine 911. One of the reasons for the front-engine/rear-drive design was to allow room for required catalysts and mufflers. It was subsequently decided that the two cars would be sold side by side. The most iconic feature on the 928 is the headlights. The headlights could be popped up to show a bullet shaped “snail-eyes”. The car was a huge success as the 928 was voted European car of the year in 1978 and is the only sports car to have won this. Between 1992-1995, the 928 GTS (Grand Turismo Sport) was created with a 5.4 Litre and 345BHP. The changes compared to the 928 was that the bodywork was updated with flared rear fenders. It also came with a stronger manual gearbox with differential driven oil pump and front mounted oil cooler. It was also becoming available in North America in 1992. The car was manufact

    • Year: 1992
    • Mileage: 15000 mi
    For sale
    POA POA
  • 1982 Porsche 928

    POA POA

    If someone described a car as a rear engine, rear wheel drive sports car made in Germany, even if one wasn’t a car person the obvious conclusion would always be Porsche. Then, in 1977 the unthinkable happened in Stuttgart, the engine was moved to the front and two more cylinders were added, arranged in a V formation and for the first time since 1948 the little car company from Gmund, Austria had a true GT car for the masses. This new step forward for Porsche didn’t come without hurdles, but it easily solidified their ability to meet market demands and produce anything they set their minds to. The technical specifications of the 928 are interesting. As the goal was to create a Luxury GT car to (at the time) hypothetically replace the famed 911, the car needed solid attributes of previously successful V8 powered cars, and successful GT cars. All while trying to meet new US safety and Emissions regulations while continued pressure was placed on the 911 for failing to meet requirements. As a result the 928 had similarities to that of the Chrysler 426 Hemi with 122MM Bore spacing, and early prototypes even had a 4 barrel carburetor for testing. When it debuted at the 1977 Geneva Motor S

    • Year: 1982
    For sale
    POA POA
  • 1987 Porsche 928 S4

    $26,500(£0) $26,500(£0)

    This 1987 Porsche 928 S4 is in Guards Red with Black and has less than 81k miles. Description not yet generated. All inspections welcome. We ship worldwide. Contact us at 831.373.3131 day or evening. Price: $26500 VIN: WP0JB0929HS860238 Condition: Clear Title Transmission: Manual Exterior Color: Guards Red Interior Color: Black Stock No: 0 Mileage: 80203 Warranty: No Warranty Inquire Apply for Financing View Other Cars Additional Photos

    • Year: 1987
    • Mileage: 80203 mi
    For sale
    $26,500(£0) $26,500(£0)
  • 1988 Porsche 928 S4

    $27,500(£0) $27,500(£0)

    This 1988 Porsche 928 S4 is in Venetian Blue Metallic with Silver Grey and has less than 54k miles. Original owner took delivery of this 928 in Germany through the Tourist Delivery Program on November 23, 1987. A great color combination of Venitian Blue (color code 36P) over Silver Grey leather. 5 Speed manual gearbox. Motor is sound. Stock mechanicals. Good clutch and gear box. Syncro's are good in all gears. Paint is consistent over the entire car. A good deal of original paint still on the car. A minor accident in 2015 involving the front nose. See pictures. Carfax posted. Interior is stock with the exception of the stereo head unit. Good leather, carpets and panels. Dash has some cracking. Passenger seat shows some shrinking on the lower cushion but no rips or tears. All gauges and electrical is good working including the air conditioning. Factory Options: 158 - Cassette Blaupukt Reno SQR 46 418 - Side Molding Protection 481 - Manual Gearbox - 5 Speed 494 - Addiontial Amplifier 570 - Rear A/C 650 - Sunroof 900 - Accession of the car at the Factory Recent service history: 6/17 - Inspection, Replace valve for coolant to heater core. A/C Service. New tires (Bridgestone Potenza's),

    • Year: 1988
    • Mileage: 53950 mi
    For sale
    $27,500(£0) $27,500(£0)
  • Porsche 928 ON SALE NOW

    £29,995 £29,995

    Porsche 928 S4 presented in Marine Blue Metallic comes with a comprehensive history and the following specification; Linen leather piped in Marine Blue, sports seats with electric adjustment, leather steering wheel, air conditioning, Kenwood stereo, electric sunroof, cruise control, top tint on windscreen and 17" Turbo style alloy wheels. Part exchange welcome, competitive finance available. We are a respected Porsche specialist with full Porsche workshop facilities. Viewings welcome by appointment only. Body: Coupe Transmission: Automatic Mileage: 88,000 Fuel Type: Petrol Registered: 1990 (G) Doors: 2 Engine Size: 5.0 Finished in: Marine Blue Metallic

    • Year: 1990
    • Mileage: 88000 mi
    For sale
    £29,995 £29,995
  • Porsche 928 S '82

    €24,950(£0) €24,950(£0)

    Lowered price from €30.000 -> €24.950 The Porsche 928 is a luxury GT car produced from 1978 to 1995. Originally intended to replace the company's well-known and famed 911, the 928 combined the power, poise, and handling of a sports car with the refinement, comfort, and equipment of a luxury sedan to create what some Porsche executives thought would be a vehicle with wider appeal than the compact, quirky and sometimes difficult 911. Since its inception in 1949, Porsche has manufactured only seven front-engined models, four of which were coupes, including the 928. The car has the distinction of being the company's only coupe powered by a front-mounted V8 engine, and the company's first production V8 powered model. Specifications: Body : length/width/height - cm (in) : 452/189/128 (178/74.4/50.5); wheelbase : 250 cm (98.4 in); weight : 1450 kg (3200 lbs). Engine : V8, front-mounted; 16 valves, indirect injection, 5-speed box ; driving rear-wheels. Power : 300 bhp 5250 rpm. Top speed : 260 km/h ( 160 mph) >>>>> Oldtimerfarm specializes in consignment sales of vintage and collection cars and we are proud to present you this car. Oldtimerfarm is located in Belgium, 9880 Aalter, Steenweg

    • Year: 1982
    For sale
    €24,950(£0) €24,950(£0)
  • PORSCHE 928 S SRS 4 1991

    £39,995 £39,995

    Porsche's intended replacement for the 911 may not have achieved that goal, but it wasn't for a lack of performance or technological wizardry. An alloy V8 was attached to a rear-mounted gearbox, and the galvanised body had aluminium doors and bonnet, plus body-coloured plastic bumpers - pretty radical for its time. The 928 was launched to a fanfare and surprised many by being named European Car of the Year, an award that traditionally went to worthy but dull family hatchbacks.;Critics immediately recognised the advances that the 928 had made over the 911, and the car was universally praised as one of the greatest GT cars of all time. It handled, it was quick, it looked fantastic and it was comfortable. With the 928, Porsche created a serious long-distance grand touring car that could also tackle twisting B-roads with ease, thanks to super-direct steering, 50/50 weight distribution, and a clever Weissach rear axle that kept the car firmly planted.;As time went on, the 928 grew ever more powerful and the S4 version that came out in 1987 had a much developed 5-litre V8 that produced 316bhp. There were a number of changes including different pistons, cylinder heads, camshafts, and larger intake valves, compared to earlier 5.0 L engines. The LH-Jetronic injection was updated, the ignition changed to the EZK system and automatics were fitted with a larger torque converter. The styling was also subtly updated with smoother nose and tail treatments that gave the car an even cleaner, sleeker look. 0-60 was now in the 5.6secs bracket and the top speed was raised to 168mph.;As a true GT car the automatic gearbox, as seen in this delightful right-hand drive example, offered seamless changes perfectly complementing the long-legged 5.0-litre V8. Delivered new, we believe, to Hong Kong in 1991 in Amethyst Purple Metallic with a matching, and oh-so period, interior, this 1991 S4 was first registered in the UK on the 9th June 2003. There are invoices on file detailing quite a lot of work and attention at K2 Race Engineering and Graham Hill Motor Technicians, amongst others, and the Porsche has recently been serviced. The car is presented to auction in very good order with some 67,000 kilometres (42,000 miles) indicated, an MOT valid until January 2018, and the perfectly apt private registration A928 GEM. This 928's distinctive colour scheme and dramatic interior made it the ideal candidate for 'Modern Classics' magazine, and this car looks great in a double-page feature about the classic 928. ;These 928s really are quite amazing machines and look like no other car before or since with inspired styling that will never go out of date. Considering that it was Porsche’s flagship model for almost two decades, with all the engineering integrity and supercar performance that this implies, it is really surprising that you can still pick them up for such modest sums today. Compared to air-cooled 911s they offer astonishing value for money, a situation that will not last much longer as prices have already begun to rise sharply. Another one to buy now before everyone else comes to the same conclusion.;

    • Mileage: 41000 mi
    • Engine size: 4.957
    For sale
    £39,995 £39,995
  • 1986 Porsche 928 4.7S Series 2

    POA POA

    Grand Prix white, Black leather/logo interior. This is an unusual but quite special car that has spent most of the last 15 years in storage. There have only ever been 2 owners, both of which lived within a few miles of each other around Leatherhead, which explains why the car only ever visited Porsche Guildford, the nearest main dealer. + + + Eporsch has carried out a recommissioning over the last few months including cambelt replacement, all major servicing aspects have been brought up to date including replacement of all oils & fluids, all four tyres have been replaced, various bodywork repairs have been carried out to address the minor defects picked up over the years, and various minor mechanical issues resolved. + + + There is an original stickered service book, showing delivery to AFN Guildford and 17 service stamps, all of which (except the last) was carried out by AFN (or Porsche Guildford [...]

    • Year: 1986
    • Mileage: 29000 mi
    For sale
    POA POA
  • 1988 Porsche 928 S4 Coupe

    POA POA

    This limited ownership Porsche is in excellent running and driving condition, with working A/C. A very original unmolested car that has been well maintained, with its stickers all in the original placement, and is a desirable model. It has good body fit, is rust free, and is equipped with several options such as an electric sunroof, power windows, door locks, and seats. The entire clutch system was replaced along with the brakes at 106K miles, and have less than 2k miles of wear. At that time, a full review was done of the car, and all fluids were changed. The tires have less the 6k miles wear on them with plenty of life left. All receipts will accompany the purchase (going back as far as 1991) as well as the shop/owner manual with service stamps from new. All tools are present except 1 wrench from rear kit, and the dash is 100% original. This Porsche is surely one to become a favorite for weekend drives or as your daily driver.

    • Year: 1988
    • Mileage: 108189 mi
    For sale
    POA POA