1945 FMC LVT (A)-5
Offered by Auctions America | Portola Valley, California | July 11-12, 2014
LVTs (or Landing Vehicle Tracked) were badass amphibious landing crafts first used by U.S. troops in 1941. They were a development of a civilian vehicle called the Roebling Alligator from 1935. This thing is unrestored and is one of about three left in the world (then again, only 269 of this specific type (the (A)-5) were produced). It is powered by a 250 horsepower seven-cylinder radial engine (bizarre, right?). These were modified after WWII and used again in Korea, but retired in 1957. Estimate: $300,000-$500,000. Check out more here.
Update: Not sold, high bid of $375,000.