• United Kingdom

Famous British Designer Willam Towns (the same man who penned Aston Martin Bulldog concept car) created Guyson E12 for Jim Thomson in 1974. It was a wedge-shaped roadster based on Jaguar E-Type Series III. The E12 was a fiberglass bodywork conversion and it was planned to be offered commercially. However, only two examples have been made and the project ended in 1977.