Benz was probably the first to go into car production in 1888, after experimental cars from 1885-1887.
Between 1899 and 1901 the company also produced a number of experimental cars, but none were offered to the market.
G.M.'s experimental electric car has attracted great interest, the company said.
The experimental cars will not end up in any home garages, at least not soon.
Doble himself owned one from 1925 to 1936 as his own experimental car.
We spent the next hour chatting about the experimental gas-electric car he'd built in college.
They, too, noticed the attention being given to the experimental car.
The first Wildcat was created as a 1953 two-seater show and experimental car.
Most new equipment, especially experimental cars, was broken in on these tracks.
In 1919 the company made an experimental 3-wheel car with air-cooled engine, but this did not go into production.