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Type | Saloon (sedan) | Roadster | Roadster | |  |
Seats | 4/5 | 2 | 2 | |  |
Doors | 4 | 2 | 2 | |
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Top Speed | 158 mph | 100 mph | 170 mph | |  |
Acceleration (0-100 km/h) | 7.90s | | | |  |
Standing 1/4 mile | 15.40s | | | |  |
Standing km | 27.60s | | | |  |
Power-to-weight | 160.75 hp/ton | | 510.02 hp/ton | |  |
Specific Output | 0 hp/cu in | 0 hp/cu in | 0 hp/cu in | |
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Engine | V 12 ( 60.0º vee) | Straight 4 | V 12 (60º vee) | |  |
Valve train | Single overhead camshaft | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | |  |
Valves | 2 valves per cylinder
24 total valves | 4 valves per cylinder
16 total valves | 2 valves per cylinder
24 total valves | |  |
Displacement | 304 cu in | 89 cu in | 305 cu in | |  |
Bore x Stroke | 3 in x 3 in
1.12 ratio | 3 in x 4 in
0.68 ratio | 3 in x 3 in
1.24 ratio | |  |
Compression ratio | 8.80:1 | | 10.40:1 | |  |
Maximum power | 299 hp @ 5200 rpm | 41 hp @ 3800 rpm | 509 hp @ 7600 rpm | |  |
Maximum torque | 332 ft.lb @ 4100 rpm | | 386 ft.lb @ 6300 rpm | |  |
Fuel | Petrol | | Petrol | |  |
Main bearings | 7 | | | |  |
Construction | | | Aluminium Alloy block &
Aluminium Alloy head | |  |
Coolant | Water | Water | Water | |  |
Sump | Wet sumped | | | |
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Wheelbase | 116 in | 101 in | 96 in | |  |
Length | 198 in | | 176 in | |  |
Width | 73 in | | 73 in | |  |
Height | 55 in | | 38 in | |  |
Track | front: 60 in
rear: 61 in | front: 45 in
rear: 45 in | front: 56 in
rear: 56 in | |  |
Ground clearance | 6 in | | | |  |
Kerb weight | 4101 lb | | 2200 lb | |  |
Weight distribution | 50.70 | | | |  |
Frontal area | 2.12 | | | |  |
Cx | 0.72 | | | |  |
Drag coefficient | 0.340 | | | |  |
Fuel capacity | 27 US Gal | | 49 US Gal | |
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Engine location | Front | Front | Middle | |  |
Engine Alignment | Longitudinal | Longitudinal | Longitudinal | |  |
Wheel Drive | Rear wheel drive | Rear wheel drive | Rear wheel drive | |  |
Transmission | 4, Manual
| 4, Manual
| 5, Manual
| |  |
Top gear ratio | 0.73 | 1.00 | 0.85 | |  |
Steering | Recirculating ball | | Rack & Pinion | |  |
Power Steering | yes | | | |  |
Turning circle | 39 ft | 0 ft | 0 ft | |  |
Brakes | front: Disc Ventilated rear: Disc Ventilated with ABS servo assisted
| | front: Disc Ventilated rear: Disc Ventilated
| |  |
Brake diameter | front: 12 in
rear: 12 in
| | | |  |
Wheels | front: 7 15 rear: 7 15
| | | |  |
Tyres | front: 225/60 R15 rear: 225/60 R15
| | | |
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Designer | | | Malcolm Sayer | |  |
Number made | | | 1 | |
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