Can't help you. My DeTomaso Buyers Guide says that approximately three (3) prototypes wre built in the period 1967-1970. At least 3 different 48-volt DC motors wrre mentioned, all driving the rear wheels. Batteries wre in both ends of the tiny car. This car was never maufactured, so what you have is a true prototype, and it sounds like you don't have a complete one, either. A few photos are shown in the out-of-print Buyers Guide. Possibly, the factory rep could give some info. Try claudia.lodi@detomaso.it She speaks excellent english and is quite helpful if very busy. Good luck.