Jay Leno’s Massive 27-Liter V12 Bentley

Jay Leno continues to show off his seemingly inexhaustible collection of amazing vehicles, this time taking us for a spin in a custom-built Bentley, which has been upgraded with an engine originally designed for use in WWII airplanes. The car started out as a 1930 Bentley, but was restored and fitted with a massive 27-liter Rolls-Royce Merlin engine by Bob Petersen Engineering.

That engine alone weighs about 3,500 lbs, and is a whopping 19 liters greater in displacement than the largest engine Bentley ever used. The three-ton car comfortably seats four, has an estimated 650 to 700 horsepower and a massive amount of torque. Despite its vintage looks, the car now has fuel injection, an Allison automatic transmission and electric power steering.

We wonder how many miles per gallon (or gallons per mile) this thing gets.