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Porsche
Porsche 928
1988 Porsche 928 S4
1988 Porsche 928 S4, in diamond blue metallic (f5). The S4 introduced a 32-valve engine and revised aerodynamics.
Diamond Blue Metallic (F5) · Metallic
Venetian Blue Leather · Full Leather
This car
PaintDiamond Blue Metallic (F5) · Metallic
InteriorVenetian Blue Leather · Full Leather
Production
Years produced1987–1991
Units madeapprox. 16,213
Where builtZuffenhausen, Germany
Body styles2-door 2+2 liftback coupé
Engine
EngineV8, water-cooled, DOHC
Displacement4,957 cc
Cylinders8
Valves32
AspirationNaturally aspirated
Power316 bhp (320 PS) @ 6,000 rpm
Torque317 lb ft (430 Nm) @ 3,000 rpm
FuelPetrol
Drivetrain & performance
Gearbox5-speed manual / 4-speed automatic
Wheel driveRear-wheel drive
LayoutFront-engine, rear-wheel-drive
Top speed165 mph (265 km/h)
0–62 mph5.9 s
0–60 mph5.7 s
¼ mile13.9 s
Economy (combined)17–22 mpg (16.6–12.8 l/100km)
Chassis & dimensions
Brakes — front304 mm ventilated discs, 4-piston calipers
Brakes — rear299 mm ventilated discs, 4-piston calipers
WheelsFront 16x7, Rear 16x8
TyresFront 225/50 VR16, Rear 245/45 VR16
SuspensionFront: Double wishbones; Rear: Multi-link Weissach axle
Kerb weight1,590 kg
Drag coefficient0.34
Length4,520 mm
Width1,836 mm
Height1,282 mm
Wheelbase2,500 mm
Pricing
Price new (1988)£48,469 · $69,380
Estimated value now£25,000 – £45,000
In dollars$35,000 – $60,000
-28% vs new, at the midpoint. Values as at 4 November 2026. Basis: UK dealer listings and 2026 auctions.
The S4 introduced a 32-valve engine and revised aerodynamics.
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