The wealthiest Americans are cheapskates, at least as far as their tastes in automobiles goes. Perhaps that is why some rich Americans stay rich.

24/7 Wall St. asked auto trends research firm Truecar to find the best-selling cars and light trucks that America's rich drive. Truecar analyzed industry sales data from the 10 wealthiest U.S. ZIP codes by median income, according to the Internal Revenue Service, including neighborhoods in New York City, Greenwich, Conn., and the gated community of Fishers Island, Fla. Based on the 20 top-selling cars from Truecar's report, 24/7 Wall St. identified the eight cheap cars the richest Americans drive.

Most rich Americans drive affordable cars. The average price of eight of the cars among the top 10 was less than $40,000. 24/7 Wall St. excluded the two most expensive cars because they are considered luxury models, but by the standard of high-end cars, they cost very little.