Tech specs

Lotus 23B

Engine 1598cc four with alloy block and aluminium DOHC head fed by twin Weber 40DCOE

Gearbox Renault or VW/Hewland, 4-speed (or 5-speed)

Chassis multi-tubular spaceframe

Body glass fibre

Suspension (f/r) unequal-length double wishbone, coil spring and damper, anti-roll bar/reversed lower wishbone, top link, twin radius arms, anti-roll bar

Brakes outboard discs

Steering rack and pinon

Wheelbase 90in

Width 59.5in

Weight 884Ib

Track (f/r) 51.5/50in

Westfield XTR4

Engine 1784cc all-alloy DOHC four fed by Motronic engne management system with 3-way catalytic converter

Gearbox Audi, 5-speed

Chassis multi-tubular spaceframe

Body glass fibre

Suspension (f/r) double unequal-length wishbones, anti-rdl bar, adjustable dampers/double unequal-length wishbones, anti-roll bar, adjustable dampers

Brakes discs

Steering rack and pinion

Wheelbase 95in

Width 64in

Weight 1430Ib

Track (f/r) 57/56in