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Type | Roadster | Convertible (cabrio) | Roadster | |  |
Seats | 2 | 2+2 | 2 | |  |
Doors | | 2 | 2 | |
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Top Speed | 70 mph | 109 mph | 93 mph | |  |
Acceleration (0-100 km/h) | | | 10.4s | |  |
Standing 1/4 mile | | 18.00s | | |  |
Power-to-weight | 35.81 hp/ton | 83.02 hp/ton | 96.39 hp/ton | |  |
Specific Output | 0 hp/cu in | 0 hp/cu in | 0 hp/cu in | |
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Engine | Straight 4 | Straight 4 | Straight 6 | |  |
Valve train | | Double overhead camshaft (per bank) | Overhead valves | |  |
Valves | | 2 valves per cylinder
8 total valves | 2 valves per cylinder
12 total valves | |  |
Displacement | 354 cu in | 122 cu in | 120 cu in | |  |
Bore x Stroke | 5 in x 5 in
1.03 ratio | 3 in x 4 in
0.93 ratio | 3 in x 4 in
0.69 ratio | |  |
Compression ratio | | 8.00:1 | 7.50:1 | |  |
Maximum power | 39 hp | 87 hp @ 5100 rpm | 80 hp @ 5000 rpm | |  |
Maximum torque | | 104 ft.lb @ 3000 rpm | 93 ft.lb @ 4000 rpm | |  |
Fuel | Petrol | Petrol | Petrol | |  |
Main bearings | | 5 | 4 | |  |
Construction | | | Cast iron block &
Light alloy head | |  |
Coolant | Water | Water | Water | |
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Wheelbase | 102 in | 90 in | 94 in | |  |
Length | | 163 in | 154 in | |  |
Width | | 64 in | 61 in | |  |
Height | | 48 in | 55 in | |  |
Track | front: 56 in
rear: 56 in | front: 53 in
rear: 52 in | front: 45 in
rear: 48 in | |  |
Ground clearance | | 5 in | 8 in | |  |
Kerb weight | 2401 lb | 2310 lb | 1830 lb | |  |
Weight distribution | | 56.00 | | |  |
Fuel capacity | 16 US Gal | 12 US Gal | 13 US Gal | |
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Engine location | Front | Front | Front | |  |
Engine Alignment | Longitudinal | Longitudinal | Longitudinal | |  |
Wheel Drive | Rear wheel drive | Rear wheel drive | Rear wheel drive | |  |
Transmission | 3, Manual
| 5, Manual
| 4, Manual
| |  |
Top gear ratio | 1.00 | 0.88 | 1.00 | |  |
Steering | Worm & Nut | Worm & Roller | Rack & Pinion | |  |
Turns lock-to-lock | | 2.8 | | |  |
Turning circle | 0 ft | 34 ft | 0 ft | |  |
Brakes | rear: Drum
| front: Disc rear: Disc servo assisted
| front: Drum rear: Drum
| |  |
Brake diameter | | | front: 11 in
rear: 11 in
| |
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Number made | | | 464 | |
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