The development of the Low Drag Coupe is a well documented and significant part of Jaguar's racing history. Conceived by Jaguar engineers in early 1962, there were plans to produce several cars for competing in the World Manufacturer's Championship but in reality only one car was actually made.
Based on the production steel E-Type, the Low Drag Coupe used the steel monocoque tub but with lightweight aluminium bonnet, doors and boot lid and Perspex windows. The most distinctive feature was of coursethe Coupe's rear end treatment. Designed by Jaguar's Malcom
Sayer, the tail combined advanced aerodynamics with an aesthetically pleasing shape that gave the car a top speed in the vicinity of 170mph.
The one-and-only Low Drag Coupe was retained by the factory until 1963, when it was sold to experienced Jaguar campaigner Dick Protheroe. Protheroe re-badged his car with the number plate "CUT 7" and achieved considerable successes in races in England and Europe.

Over time this car came to be referred to variously as the "Sayer Low Drag Coupe" or the "Protheroe Low Drag Coupe" and is now recognised as a critical turning point in Jaguar's re-involvement in developing the racing Lightweight E-Type Roadsters.

The Tempero Lightweight Coupe is based on the Low Drag Coupe but with significant enhancements. The Sayer/Protheroe car was based on the production car, with a full steel monocoque tub. The Tempero car is built from all aluminium, including the tub, body panels, doors and rear end. The end result is a weight saving over a standard Coupe in the vicinity of 400 pounds.

The cars in the photos were built by Temperos in the early 1990's and have been used extensively in racing at club level. The dark BRG car was built by Rod Tempero for his own personal use on both road and track and now leads a happy life in retirement in Australia.