Did they have cars in the 1700 and 1800?

In essence, yes. They were rudimentary at best. Wind power, man power, and steam engines when invented in 1712 would be later installed and create a landslide event that would lead up to 1908 when Henry Ford created the first production automobile, the Model T; which would later be classified as making vehicles popular. So yes and no. Depends on the classification of "Car."