I have spent quite a bit of time driving a three wheeled "hilo", the type where the drive wheel is connected to a steering bar, and you stand on a shelf behind the drive wheel with the forks and fork wheels forward. Myself and other workers at the warehouse were very skilled in speeding through aisles of pallets and flying onto trucks to drop pallets off.
However, that was at speeds of well under 20mph.
If you are going down a road at cruising speed and you turn the wheel hard (in any car) you will be going off the road. Is it possible that driving with rear wheel steering is something that can be learned?
One down side of a standard front steering tadpole trike is that when turning sharp corners, the rear wheel has a tendancy to break loose from the road at high speeds. Using the rear wheel as the steering wheel could increase that tendancy. Using that wheel as the driving wheel might also have an effect, although the weight of the engine could compensate.
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