Chassis
R4 composite monocoque structure, designed and built in-house, carrying the Cosworth Racing CR-5 V10 engine as fully stressed member, Jaguar steering and power assistance.

Front suspension
Cast titanium uprights. Upper and lower carbon wishbones and pushrods. Torsion bar springing and anti-roll bar. Jaguar/Penske damper layout.

Rear suspension
Cast titanium uprights. Upper and lower carbon links and pushrods. Coil springs and torsion anti-roll bar. Jaguar/Penske damper layout.

Transmission
Jaguar seven-speed gearbox, longitudinally mounted high-pressure hydraulic system for power shift and clutch operation. AP Racing triple-plate pull-type clutch. Independent oil system using Castrol Fluid Technology.

Fuel system
Rubber fuel cell, mounted in monocoque behind cockpit.

Oil system
Oil tank mounted at rear of monocoque.

Cooling system
Separate water and oil cooling radiators in each sidepod.

Electrical
Pi 'VCS' System. Integrated engine/chassis electronic control system, DASM and DATA logger.

Braking system
AP Racing lithium alloy six-piston callipers. Carbon Industrie or Brembo carbon/carbon discs and pads.

Tyres: Michelin

Engine Specification - Cosworth Racing CR-5 V10