A friend recently got this go cart. The front suspension and the steering column looks like a cut down Ford T ? Speed is controlled by the hand lever which operates a clutch. The engine is a modern 6hp horizontial shaft.
Mid to late 90's. Cheers -- Gary There is no great concurrence between learning and wisdom.-- Francis Bacon
This old book reprinted by Lindsay has several variants on that; the designs are mostly based on T parts, American Austin parts, and gasoline washing machine motors. http://www.lindsaybks.com/bks7/midrace/index.html