Ken Lingenfelter

Size of Collection: 250*
Est. Total Value: $100 million-$500 million*

Ken Lingenfelter, who owns Lingenfelter Performance Engineering, is a huge car buff. He owns a collection of 250 cars. His collection, called “The Lingenfelter Collection,” is on display in a museum in Livingston County, Michigan. Classic cars include Corvettes, a 1969 Pontiac GTO Judge, a 1970 Oldsmobile Vista, and dozens more.

Lingenfelter also owns newer cars, like a LaFerrari and Lamborghini Reventon. There are some cars from the collection for sale, and Lingenfelter will high-power your car, for a price. An engine from the famous performance engineer costs $30,000, but the powerful crate motor gets 900 horsepower and will kick any car into gear.