In 1876 Nicolaus August Otto invented an efficient gas motor engine. The four stroke cumbustion engine called "Otto Cycle Engine". His four stroke engine was universally adopted.
That is why the name "Automobiles" came to be accepted as a tribute to Otto and his four stroke cycle: Induction
Compression
Power
and exhaust.
Further study has revieled that in 1769 Nicolas Joseph Cugnat built a steam powered automobile. Recognised by the British Royal Automobile Club as being the first working automobile.
The history is really interesting, this answer omits many prominent names in bringing cars to the masses.
Updated Answer
In 1767 Nicolas Joseph Cugnat built a steam powered Automobile, recognised by the British Royal Automobile Club as being the first.
Steam cars are still around look at land speed records for more information.
Automobiles were created for a quicker transportation system.
Automobiles Lambert was created in 1926.
Automobiles Grégoire was created in 1903.
Bugatti Automobiles was created in 2000.
Automobiles Marathon was created in 1952.
Zastava Automobiles was created in 1953.
Venturi Automobiles was created in 1984.
Aftab Automobiles was created in 1982.
Départ des automobiles was created in 1896.
English Racing Automobiles was created in 1933.
Fiat Automobiles was created on 1899-07-11.
Premier Automobiles Limited was created in 1944.