1972 BMW Turbo Prototype E25

The BMW Turbo Prototype is a rear wheel drive car, with its engine located amidships, and a 2 door coupé body designed by Paul Bracq. The BMW Turbo Prototype is one of the E25 model family from BMW. Power is produced by a single overhead camshaft, 2 litre turbocharged 4 cylinder engine, with 2 valves per cylinder that produces power and torque figures of 276 bhp (280 PS/206 kW) and 238 N·m (176 lb·ft/24.3 kgm) respectively. The power is supplied to the wheels via a 4 speed manual gearbox. Its stated weight at the kerb is 980 kg. Maximum stated speed is 250 km/h (155 mph).


BMW Turbo Prototype -
BMW Turbo Prototype
Image courtesy of BMW

Key facts

1972 BMW Turbo Prototype E25 information summary

What body style?
2 door fixed-head coupé with 2 seats
How long?
4155 mm
How heavy?
980 kg
What size engine?
2 litre, 1991 cm3
How many cylinders?
4, Straight
How much power?
280 PS / 276 bhp / 206 kW
How much torque?
238 Nm / 176 ft.lb / 24.3 kgm
How quick?
0-100 km/h: 6.6 s
How fast?
250 km/h, 155 mph

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1972 BMW Turbo Prototype data
Body type2 seater fixed-head coupé
Number of doors2
DesignerPaul Bracq
dimensions & weights
Wheelbase 2400 mm 94.5 inches
Track/tread (front) 1550 mm 61 inches
Track/tread (rear) 1530 mm 60.2 inches
Length 4155 mm 163.6 inches
Width 1880 mm 74 inches
Height 1100 mm 43.3 inches
Ground clearance
length:wheelbase ratio 1.73
Kerb weight 980 kg 2161 lb
Weight distribution
fuel tank capacity
Drag coefficient
Frontal area
engine type turbocharged petrol
Engine manufacturer BMW
Engine code
Cylinders Straight 4
Capacity 2 litre
1991 cc
(121.498 cu in)
Bore × Stroke 89 × 80 mm
3.5 × 3.15 in
Bore/stroke ratio 1.11
Valve gear single overhead camshaft (SOHC)
2 valves per cylinder
8 valves in total
maximum power output 280 PS (276 bhp) (206 kW)
Specific output 138.6 bhp/litre
2.27 bhp/cu in
maximum torque 238 Nm (176 ft·lb) (24.3 kgm)
Specific torque 119.54 Nm/litre
1.44 ft·lb/cu3
Engine construction
sump wet sumped
compression ratio 6.8:1
Fuel system Kugelfischer fuel injection
bmep (brake mean effective pressure) 1502.2 kPa (217.9 psi)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 497.75 cc
Aspiration Turbo
Intercooler N
Catalytic converter N
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h 6.6 s
Acceleration 0-160km/h (100mph) 15.70 s
Standing quarter-mile
Standing kilometre
Maximum speed 250 km/h (155 mph)
Power-to-weight ratio 285.55 PS/tonne (1000 kg)
210.01 kW/tonne (1000 kg)
281.63 bhp/tonne (1000 kg)
0.13 bhp/lb
Weight-to-power ratio 4.76 kg/kW
7.95 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Engine position mid
Engine layout transverse
Drive wheels rear wheel drive  
Torque split N/A
Steering rack & pinion
turns lock-to-lock
Turning circle
Front suspension I.MS.TB.
Rear suspension
Wheel size front 9½J x 14
Wheel size rear 9½J x 14
Tyres front
Tyres rear
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox 4 speed manual
Top gear ratio
Final drive ratio
Carfolio.com ID96294
Production total 2
Model code
Model family E25
RAC rating 19.6
Insurance classification No information available
Tax band No information available
1972 BMW Turbo Prototype added 2002-06-26.
Last modified 2017-07-30.