With a new Corvette being revealed at the Detroit auto show, here are past 'Vettes that are the most valuable today.
The "Big Tank" refers to this car's 36-gallon gas tank, useful in racing because it minimized fill-ups. It also had a 345 horsepower fuel-injected engine and performance suspension and brakes.
This car also has the iconic split rear-window featured on 1963 cars.