10 great cars of Gatsby's Roaring '20s
Photo courtesy of ConceptCarz.com
1921 Mercer Series 5 Raceabout
Average price today: $340,000
Why it's special: This sporty car has a long nose, thanks to a giant four-cylinder engine that is the size of today's V-8. Logging in at 298.3 cubic inches, the engine has just 70 horsepower -- powerful for the day.