this might be the earliest car made in the USA, but the Lambert never went into production until 1902 and sold until 1917

Made by a JW Lambert according to his decendants, in 1891
http://caroljeanlambertbooks.com/proof-of-priority-rays-questions-jim-swovelands-statement-walter-lewis-photo/

Since they are looking to make money by selling books asserting their ancestor made the first automobile in America, I'm going to skeptical until some 3rd party verifies this.

"With a significant role in the development of the automobile, John Lambert is featured in two books Clinton resident Carol Lambert has written: "Something New Under the Sun: The History of America's First Gasoline Car," as well as a fictionalized history, "Who Invented America's Gasoline Automobile?" Carol Jean Lambert is having a book launch open house at Thurston House, Green Street, Clinton, on Saturday, June 14, from 10 a.m. to 3 p.m."

http://www.telegram.com/article/20140613/COULTER01/306139966/1189/coulter17