Riley 15/6 mph (1933)
 

The Imp was the first car raced by Mike Hawthorne. ENGINE 6cyl ohv RAC Rating14.3hp Bore 62 Stroke 95.2 Firing Order 1, 5, 3, 6, 2, 4. Capacity 1726cc 56bhp at 4800rpm Compression Ratio 7.1:1 Carburation 2SU TRANSMISSION 4-speed Preselector or 'silent third' gearbox. PSG Manual Top gear ratio 5:1 4.77:1 3rd g/r 6.25:1 5.95:1 2nd g/r 7.5:1 7.15:1 1st g/r 13.35:1 11.78:1 Reverse 22.99:1 18.51:1 SUSPENSION Semi-elliptic all round BRAKES Riley Continuous cable with cam operated shoes 15" Drums. PERFORMANCE Max speed 89mph DIMENSIONS Wheelbase 8'1.5" (aprx 2370mm) Track 4' (aprx 1210mm) Length 12' (aprx 3660mm) Width 4'9½" (aprx 1440mm) Fuel Tank 15 galls. Wheels Dunlop Centre lock wire 3.0x19" Tyres 5.0x19 Weight 18cwt