Karl Benz in Mannheim,
Germany in 1883-1885 spent many hours designing and experimenting
with a 3 wheeled petrol powered machine with the idea that this device
would allow two people to move without undue effort from place to
place without using the rail lines which were available at the time.
He is credited with being the first man to achieve transport by means
of a petrol powered 3 wheeled cart..