Bédélia cycle car

Bédélia cycle car racer. The driver sat at the rear, the mechanic went along for the ride in the front seat. These people must have the same personality quirk of sidecar monkeys. 

The steering is a center-pivot axle, like a wagon, Forward motion is provded by a motorcycle engine with belt drive. About as basic as it gets!, The passenger version below got fenders and a bit more bodywork. About 3000 of these things were built, and were taken seriously enough to be used as an ambulance. (Bottom)

 

In ambulance form.  From Retromobile