 The bespoke body of each Speedback GT is produced using traditional coach building methods; the aluminium body panels are hand beaten and then rolled over an english wheel.The bucks over which the panels are beaten have been milled out using a 5-axis CNC milling machine from CAD data, obtained from the full-size design clay model.The powertrain is a 5.0-litre Jaguar AJ-V8 engine generating with a six-speed ZF automatic transmission.