Jaguar's original D-type featured a lattice steel chassis which carried the engine and the front and rear suspension. An aluminium monocoque tub and outer aluminium body panels were attached to this chassis, giving a light but strong overall structure. This was a pure sports racing car, specifically built for a limited life span, usually one racing season or even one specific race like Le Mans or Sebring. The bodies were as light as possible, using 18 gauge aluminium, and the fit and finish was very basic, as befitted a racing car.
The Tempero D-Type follows the same basic construction design, but with a much stronger and more durable lattice chassis that is able to carry modern suspension and braking systems for road or race use. The monocoque body is riveted and welded from heavier 16 gauge aluminium sheet and is attached to the lattice chassis in the same way as originally employed by Jaguar.
A wooden buck (or former) is used to ensure the accuracy of the individually shaped aluminium bodywork. Using the almost lost art of manually rolling the alloy on English wheeling machines, the body gradually takes shape through riveting and gas welding, in the traditional coach building method employed by Jaguar.