The 745i is a rear wheel drive Paul Bracq designed saloon (sedan) passenger car with a front mounted engine, manufactured by BMW.
The BMW 745i belongs to the E23 range of cars from BMW.
The 3.4 litre engine is a turbocharged, single overhead camshaft, 6 cylinder unit that produces 248.5 bhp (252 PS/185 kW) of power at 4900 rpm, and maximum torque of 380 N·m (280 lb·ft/38.8 kgm) at 2200 rpm.
A 4 speed automatic gearbox transmits the power to the wheels.
Its claimed kerb weight is 1590 kg.
Maximum speed quoted is 227 km/h or 141 mph.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | Paul Bracq | ||
| dimensions & weights | |||
| Wheelbase | 2795 mm | 110 inches | |
| Track/tread (front) | 1500 mm | 59.1 inches | |
| Track/tread (rear) | 1520 mm | 59.8 inches | |
| Length | 4860 mm | 191.3 inches | |
| Width | 1800 mm | 70.9 inches | |
| Height | 1430 mm | 56.3 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.74 | ||
| Kerb weight | 1590 kg | 3505 lb | |
| Weight distribution | |||
| fuel tank capacity | 96 litres | 21.1 [25.4] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | turbocharged petrol | ||
| Engine manufacturer | BMW | ||
| Engine code | M30B34 | ||
| Cylinders | Straight 6 | ||
| Capacity | 3.4 litre 3430 cc (209.311 cu in) |
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| Bore × Stroke | 92 × 86 mm
3.62 × 3.39 in |
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| Bore/stroke ratio | 1.07 | ||
| Valve gear | single overhead camshaft (SOHC)
2 valves per cylinder 12 valves in total |
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| maximum power output (DIN) |
252 PS (248.5 bhp) (185 kW) at 4900 rpm |
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| maximum torque (DIN) |
380 Nm (280 ft·lb) (38.8 kgm) at 2200 rpm |
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| Specific output (DIN) |
54 kW/litre 73.5 ps/litre 72.4 bhp/litre 1.19 bhp/cu in |
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| Specific torque (DIN) |
110.79 Nm/litre
1.34 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 8:1 | ||
| Fuel system | Bosch Motronic II fuel injection | ||
| bmep (brake mean effective pressure) | 1392.2 kPa (201.9 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 7 | ||
| Engine coolant | Water | ||
| Unitary capacity | 571.67 cc | ||
| Aspiration | Turbo | ||
| Compressor | 1 KKK turbo | ||
| Intercooler | Air/Air | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | 5.6 s | ||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | 15.8 s | ||
| Standing kilometre | |||
| Maximum speed | 227 km/h (141 mph) | ||
| Power-to-weight ratio | Higher is better 158.46 PS/tonne (1000 kg) 0.16 PS/kg 116.54 kW/tonne (1000 kg) 0.12 kW/kg 156.29 bhp/tonne (1000 kg) 0.16 bhp/kg 0.07 bhp/lb |
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| Weight-to-power ratio | Lower is better 8.58 kg/kW 14.33 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | 3.800 | ||
| Turning circle | 11.60 m | ||
| Front suspension | I.CS.ARB. | ||
| Rear suspension | I.STA.CS. | ||
| Wheel size front | 6½ x 14 | ||
| Wheel size rear | 6½ x 14 | ||
| Tyres front | 205/70 VR 14 | ||
| Tyres rear | 205/70 VR 14 | ||
| Brakes F/R | VeDi/Di-ABS-S | ||
| Front brake diameter | 280 mm | ||
| Rear brake diameter | 280 mm | ||
| Braked area | |||
| Gearbox | 4 speed automatic | ||
| Top gear ratio | 0.73 | ||
| Final drive ratio | 2.93 | ||
| general | |||
| Carfolio.com ID | 24376 | ||
| Production total | |||
| Model code | |||
| Model family | E23 | ||
| RAC rating | 31.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1981 BMW 745i Automatic added before December 1995. Last modified 2019-08-09. |
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