Did they have cars in the 1750-1900?

Answer 1

No and yes. One, that is an unusual spread of years. But, it is what it is. From 1750 until the late 1800's, no; there where no automobiles. French inventor Nicolas-Joseph Cugnot invented the first steam driven tractor that could carry a driver. While he developed the steam dray in 1770, it was not until 1784 that British engineer William Murdoch built a working model that he drove around the town of Camborne.

Nicholas Otto and Rudolf Diesel are credited with designing the first petrol fired internal combustion engines. Diesel's design replaced most steam driven models within years of its development from his 1893 theories.

Karl Benz built and operated his first automobile with a petrol fired engine in 1886. Gottlieb Daimler and Wilhelm Maybachbuilt their automobile from the ground up in 1889. Benz was the first to begin producing automobiles in 1888. Henry Ford began his first automobile company 3 November 1901, which became the Cadillac Motor Company less than a year later after Ford left. The Studebakers began producing electric cars in 1902 in the US and opened a line of gasoline powered cars in 1904. It was not until 1908 that FMC became the most influential automobile manufacturer in the 20th century.