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  Nikolaus Otto built the first practical four stroke internal combustion engine called the auto cycle engine.
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  Karl Benz built the first practical automobile in 1885
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  He took his stagecoach and adapted it to hold his engine creating the worlds first four wheel car
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  John Lambert builds the first gas powered auto mobile in 1891
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  Two bicycle makers called the Duryea brothers created a gas powered auto mobile and were the first people to commercially manufacture and sell them
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  Henry Ford invents the assembly line giving him a leg up on the competition not only making them faster but his cars were much more affordable giving him a larger market.