The Jaguar XKR-S GT uses a 5.0-litre supercharged V8 to send 405 kW and 680 Nm of torque to the rear-wheels via a 6-speed ZF automatic gearbox. An all-aluminium body, coupled with light weight carbon fibre components from nose to tail, and a host of chassis updates, make it one of the fastest Jaguar production cars ever. All things considered, the weather was against Mr Harris in this video, but he can speak to us on the chassis balance amongst other things.