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Porsche 928 buying guide (1977-1995)

Porsche 928 front Porsche 928 side Porsche 928 rear Porsche 928 engine Porsche 928 interior If there can be such a thing as a ‘forgotten Porsche’, the 928 is it. Although built for a remarkably long period – about 17 years – it’s not a car you read much about in the classic press. And yet the 928 is quick, extremely comfortable and has a big V8 under the bonnet. 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 race car, the 928 was always marketed as a GT and about 80% 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.

MARKET VIEW

You won't hear a bad word said among 928 owners about Paul Anderson. He has been specialising in the cars for the past ten years, and race-prepping them for six – as a 1970s model, the 928 is fast catching on among the historic race and rally crowd.

‘928s are definitely on-the-up at the moment,’ he says, before adding: ‘…but prices are lower than they were four years ago. Interest goes in peaks and troughs, and it’s the current price of fuel that dictates values.

‘Condition is more important than model or year. A superb car, early or late, might be £15,000 but good examples start at around £5000, slightly less for an S2. A GT will be at least £6000-6500 and the GTS £8000 upwards.

‘That said, you can pick up a 928 for much less if you’re lucky. One of our customers recently bought a tidy 928S for a grand…’

IN A NUTSHELL

First, the good news: 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.

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/60,000 miles; it’s wise to renew the water pump at the same time, which accounts for over half of the c£500 that a specialist will charge.

The 928’s suspension hardly changed during production: ‘You could, in theory, fit GTS suspension to a 1970s car,’ claims Paul Anderson. OE -spec dampers are now hugely expensive but Paul offers a set of specially produced gas-filled units for £700.

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,’ says Paul – while 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; it’s hard to find, even secondhand.

CONCLUSION

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 longterm 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. With decent examples available from £2500, they’re amazing value. Among the restyled cars, the S4 is the sensible buy – ‘its engine is bulletproof,’ says Paul Anderson – while the GTS is the most hardcore and most expensive to fix, having unique brakes and engine.

Buying any older high-performance car is a gamble. But one thing’s for sure: petrol is never going to get any cheaper…

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.
Porsche 928 front Porsche 928 side Porsche 928 rear Porsche 928 engine Porsche 928 interior
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Porsche 928 cars for sale

10 Search results
Porsche 928
10995 60000 GBP
  • Porsche 928 S4

    £18,995 £18,995

    Porsche 928 S4

    The Porsche 928 was a sports-GT sold from 1978 to 1995 and was an immediate hit with orders in the UK far outstripping demand. Originally intended to replace the company's iconic 911, the 928 attempted to combine the power, poise, and handling of a sports car with the refinement, comfort, and equipment of a luxury saloon to create what some Porsche executives thought would be a vehicle with wider appeal than the compact, quirky and sometimes difficult 911. The 928 qualified as a 2+2, having two small seats in the rear. Both rear seats could be folded down to enlarge the luggage area and both the front and rear seats had sun visors for occupants. Porsche's design and development efforts paid off during the 1978 European Car of the Year competition where the 928 won ahead of the BMW 7-series and the Ford Granada. The 928 is the only sports car so far to have won this competition as the usual winners were mainstream hatchbacks and saloons from major European manufacturers. This is regarded as proof of how advanced the 928 was compared to its contemporaries. This right-hand drive 1988 Porsche 928 S4 has been carefully looked after by all of its four owners who have kept it fully mainta

    • Year: 1988

    Last update: About 12 Hours Old

    • Mileage: 928 mi

    For sale
  • Arun Ltd
    01798 874477
    see details
  • Porsche 928 GTS

    £60,000 £60,000

    Porsche 928 GTS

    JUST IN - Porsche 928 GTS 5.4 V8 5 Speed Manual registered September 1992 finished in Guards Red with Grey Leather interior. Finance available on request - subject to status and terms. Ask about our Company Directors packages. Fully Valeted; 12 Months MOT; UK Wide Delivery Available; Part Exchange Welcome. See our Youtube channel or follow us on Facebook, Twitter or Instagram.

    • Year: 1992

    Last update: About 12 Hours Old
    For sale
  • Targa Florio
    01243 641117
    see details
  • 1993 Porsche 928 S4 Automatic 1993 Porsche 928 S4 Automatic. Blue. Full service history, Excellent bodywork, Silver Full leather interior – Good Condition, Tyre condition Excellent, Airbags, Alarm, Alloy wheels, CD Player, Central locking, Air conditioning, Electric door mirrors, Immobiliser, Leather seats, Power steering, Lumbar support, Sunroof. 4 seats, Experian auto check clear, The Porsche 928 is a sports-GT car that was sold by Porsche AG of Germany from 1978 to 1995. Originally intended to replace the company’s iconic 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 six 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 mass-produced V8 powered model. By the late 1960s, Porsche had changed significantly as a company, and executives including owner Ferdinand Porsc

    • Year: 1993

    Last update: 4 Days Old
    For sale
  • see details
  • 1988 Porsche 928 Series 4 Metallic Silver. Upgrades – New Timing Belt, Just been Serviced, New Bridgestone Tyres, New Waterpump, Headlamp Wash System, Rear Wiper, 12 months MOT, Service history, Excellent bodywork, Blue Full leather interior – Excellent Condition, Tyre condition Excellent. Standard Features – Alloy wheels, Folding rear seats, Electric door mirrors, Leather seats, Sunroof, Central locking, Air conditioning. 4 seats. 42,200 miles. £22,995.00

    • Year: 1988

    Last update: About 13 Hours Old
    For sale
  • see details
  • 1990 Porsche 928 5.0 GT Metallic Velvet, 12 months MOT, Full dealership history, Excellent bodywork, White Full leather interior – Excellent Condition, Tyre condition Excellent, Alloy wheels, Air conditioning, Sunroof, Radio, Leather seats, Folding rear seats, Power steering, Sports seats, Electric windows, Central locking. 4 seats, One of very few 928 GTs Manual’s left, which those who should know say was the best driving 928 ever – Detailed and comprehensive service history, with a fully stamped up Porsche service book, loads of invoices and all previous M.O.T.s together with Original Porsche book pack. £59,995.00 For further information please contact: Jonathan Franklin on +44(0)7522 911911 or via email at jonathan@hexagon.uk.net or Gary Ruberl on +44 (0)7801 191 585 or via email at gary@hexagon.uk.net

    • Year: 1990

    Last update: About 13 Hours Old
    For sale
  • see details
  • The Porsche 928 is a sports-GT car that was sold by Porsche AG of Germany from 1978 to 1995. Originally intended to replace the company's iconic 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 six 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 mass-produced V8 powered model. Ordered by Ferry Porsche to come up with a production-feasible concept for his new model, Fuhrmann initiated a design study in 1971, eventually taking from the process the final specs for the 928. Several drivetrain layouts were considered during early development, including rear and mid-engined designs, but most were dismissed because of technical and/or legislative difficulties. Having the engine, transmission, catalytic converter(s) and exhaust all cramped into a small rear engine bay made e

    • Year: 1990

    Last update: About 14 Hours Old
    For sale
  • Oldertimerfarm.be
    0032472401338
    see details
  • Porsche 928 GTS 5.5 V8 Exceedingly Desirable 5 Speed Manual finished in Midnight Blue with Full Grey Perforated Leather Interior registered September 1993, One Owner from New, Supplied by AFN Porsche Guildford as Static Demo, Full Brand New Engine Fitted 1,600 miles ago along with Brand New Discs and Pads All Round, 17 Inch 5 Spoke Alloy Wheels with Black Brake Calipers, Electric Seats, Burr Walnut Trim and Door Cards, Leather and Burr Walnut Steering Wheel, Rear Wiper with Heated Rear Windscreen, Electric Tilt and Slide Sunroof, Cruise Control, Electric Windows, Leather Headlining, Electric Door Mirrors, ABS, PSD Limited Slip Differential, Space Saver Spare Tyre, Original Toolkit and Warning Triangle, Porsche Service and last serviced at Porsche Alicante on 20/08/14 at 70,495 KMs. Finance available on request - subject to status. Ask about our Company Directors packages. Fully Valeted; 12 Months MOT; UK Wide Delivery Available; Part Exchange Welcome.

    • Year: 1993

    Last update: 3 Months Old
    For sale
  • Targa Florio
    01243 641117
    see details
  • 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

    Last update: 22 Days Old

    • Mileage: 108189 mi

    For sale
  • Classic Showcase
    (760) 758-6100
    see details
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