 Complete the following phrase:  At the same time, a mid-engined Group 6 racing car, the GTR, was being developed but only a handful were produced before this was abandoned following the death of company owner Brian Sherwood in late 1969. The GTR was only 30 inches high, and had a drag co-efficient of only 0.28. Designer Hilder achieved this by moving all the mechanical parts, such as the water and oil radiators to the rear of the car. The car was entered for the 