A 1967 Lamborghini Miura once given to Jay Leno for nothing has surged in value, now appraised at more than $2.6 million.

The Yenko Nova is a total gem of a car. This one's equipped with 4.11 gears and 350 small block producing 360 horsepower.

Jay Leno's garage is as much a museum as it is a treasure trove of classic and modern cars. Let's take a look at some of the rarest featured on his show. Some of these vehicles are irreplaceable ...