Premium sporty/performance car; Built in Germany
  • 2-door coupe
  • longitudinal front-engine/rear-wheel drive
Good condition price range: $6,500 – $14,500*


1990 Porsche 928


1990 Porsche 928


1993 Porsche 928 GTS


1993 Porsche 928 GTS


1992 Porsche 928

Pros:
  • Acceleration
  • Handling/roadholding
Cons:
  • Price
  • Ride

Expensive when new (priced at $74,545 in 1990, and reaching past $80,000 over the following years), the 928 remains costly today. Porsche fans may be eager to pay for their pleasures, but the 928 is far from the best used sports-car value.

Overview

First seen at the Geneva (Switzerland) auto show way back in 1977, Porsche’s “flagship” model gained dual airbags, a limited-slip rear differential, and a tire-pressure monitor for 1990. This year’s change made Porsche the first manufacturer to offer standard airbags for both the driver and the front passenger. Porsche considered the 928 to be its Premier Grand Touring automobile, promoting its exclusive Weissach rear suspension as an enhancement to stability.

The luxury/sports 2+2 hatchback coupe was powered by a front-mounted V8 engine, unlike the rear-engined 911 series. With a 5-speed manual transmission, the 5.0-liter, 32-valve dual-cam aluminum-alloy V8 developed 326 horsepower; but with 4-speed automatic, output dipped by 10, to 316 horsepower. Model designations were 928 GT with manual shift, and 928 S4 with automatic.

Antilock braking had been standard since 1986. The new limited-slip differential automatically transferred more torque to the wheel with the most traction, based on wheel speed, slippage, and lateral acceleration. The tire-pressure monitor alerted the driver if any tire dropped below a preset level.

Standard equipment included automatic climate control, leather power seats with driver’s memory, power windows, power door locks, an alarm system, cruise control, sunroof, heated power mirrors, heated windshield-washer nozzles, fold-out door armrests, cassette stereo, and foglights. Forged alloy wheels held 16-inch tires.

Yearly Updates

1991 928
Not much was new for the 928 in 1991.
1992 928
No new 928 coupes went to dealers this year, as Porsche prepared an improved version for ’93.
1993 928
Porsche enlarged the engine for the 928 coupes this year, changing the model designation to 928 GTS. Displacing 5.4 liters, the new V8 produced 345 horsepower. Larger, wider 17-inch “Turbo-design” wheels and tires were installed, rear fenders were widened, and the rear track width grew by 2.7 inches. Front brakes were enlarged, and the manual transmission gained an oil cooler. A rear wing spoiler could be painted body-color or black, and outside mirrors resembled those installed on the 929 supercar.
1994 928
Changes were few for 1994.
1995 928
No major changes marked the final versions of the Porsche flagship, and no other V8 model was in the works.

Engines

longitudinal front-engine/rear-wheel drive

Through 1992, Porsche’s 5.0-liter V8 produced 316 horsepower with the 4-speed automatic transmission, or 326 horsepower if equipped with 5-speed manual shift. A 5.4-liter V8 went into 1993 models, developing 345 horsepower.

dohc V8
Engine Size (liters/cubic inches) 5.0/302
Engine HP 316-326
Engine Torque (lb-ft) 317
Avail. Trans. EPA MPG (city/hwy) MPG avg. as tested
5-speed manual
4-speed automatic
13/19
15/19
dohc V8
Engine Size (liters/cubic inches) 5.4/329
Engine HP 345
Engine Torque (lb-ft) 369
Avail. Trans. EPA MPG (city/hwy) MPG avg. as tested
5-speed manual
4-speed automatic
12/19
15/19

Road Test

Buyers of a 928 get to drive the most luxurious Porsche of its time, with the bonus of all the usual performance ingredients that have made the German sports-car maker legendary. In addition, the 928 driver does not have to face the tricky behavior for which the rear-engined 911 series was noted. With its muscular V8 mounted up front, the 928’s back end is not nearly as likely to skid sideways in demanding turns, like a 911 might.

That doesn’t mean a 928 can be driven idly. Porsche has never built boulevard sports cars, remember. Its craftsmen basically build racing cars for competition purposes, and then modify those cars for street use. Therefore, driving skill is needed to take full advantage of the 928’s strengths, and do so safely. A session or two at a high-performance school would be a wise investment, in more ways than one.

Beyond more controllable road behavior you get considerably more power than a comparable 911, with its flat 6-cylinder engine, would offer. Those extra horses translate to higher top speed and even stronger acceleration. Porsche claimed that a manual-shift 928 GTS would accelerate to 60 mph in 5.5 seconds, and that an automatic transmission knocked only a tenth of a second off that figure.

On the down side, most 928 coupes were subject to a federal gas-guzzler tax, so don’t expect too much in the way of fuel economy. Then again, so were the 911s.

As a bonus, however, the 928’s longer wheelbase yields greater space in the back seat than the severely cramped 911. Both cars are 2+2 coupes, though, and not serious 4-seaters.

Ratings

Model Tested: 1992 Porsche 928

Ratings values are on a 1-10 scale, with 10 being the best. With the exception of Value, these numbers reflect how the vehicle compares against the universe of vehicles, not just against rivals in its class.

Performance

Acceleration - 8
80%
Fuel Economy - 2
20%
Ride Quality - 2
20%
Steering/Handling - 8
80%
Quietness - 2
20%

Accommodations

Controls/Materials - 6
60%
Room/Comfort Front - 5
50%
Room/Comfort Rear - 1
10%
Cargo Room - 2
20%

Other

Value - 3
30%

Total: 39

Specifications

2-door coupe
Wheelbase (in.) Length (in.) Width (in.) Height (in.) Weight (lbs)
98.4 178.1 74.4 50.5
Cargo Volume (cu/ft) Payload Capacity (cu/ft) Fuel Capacity (gal.) Seating Capacity
NA 22.7 4
Headroom Legroom
Front Rear Front Rear
NA NA NA NA
Safety Ratings

Model Tested: N/A

NHTSA

(5 is the highest rating)

Front Impact Test

Driver Injury - N/A
N/A0%
Front Passenger Injury - N/A
N/A0%

Side Impact Test

Driver Injury - N/A
N/A0%
Rear Passenger Injury - N/A
N/A0%

HLDI

(A score of 100 is average. Lower is better)

Collision N/A
Injury N/A
Theft N/A

Trouble Spots

Air conditioner
Description: The air conditioner stops working because the O-rings leak between the expansion valve and evaporator. (1991-92)
Tail/brake lights
Description: The fuse for the brake lights and cruise control blows because the wiring harness near the right hinge on the hatch gets chafed. (1991)
Battery
Description: The battery dies and the alarm system malfunctions if the radio is removed and reinstalled without the frame for the radio touching an insulating strip on the radio. (1990-93)
Battery
Description: The battery can go dead because the switches for the doors and glovebox light may not open fully when the doors are closed. (1992-94)

Recall History

1990
Description: Plastic fuel-gauge mounting nut may crack and allow fuel to leak from tank.
1991
Description: Improperly supported plastic filler piece in automatic transmission can move because of hydraulic pressure in system, preventing kickdown into lower gear.

Equipment Lists

Equipment lists are only viewable on larger screen sizes.

Pricing

Used-car pricing varies widely depending on local market conditions. Therefore, we recommend visiting websites that list used cars for sale to get a better idea of what a specific model is selling for in your area.