This unusual looking roadster is of course, not a production car. This is a car built by "Madman" Randy Grubb, a hot rod builder based in Grants Pass, Oregon. There's a reason this car is called the "Tank Car"; it's because the car is powered by a former US Army battle tank engine.
The engine is a continental AV-1790-5B, a SOHC aircooled V12 with a displacement of 1790CI or 29333cc, normally aspirated. It is an engine that was equipped on the M47 Patton Tank, the main battle tanks used by the American Army in the '50s.
The maximum outtput of the engine during its tank days was 799 BHP, but when transferring it to this car the intake and exhaust system was simplified, making it 900 BHP. The maximum torque is a mind boggling 1500lbs-ft, or 207 kgfm.
The chassis is full original, and the classic style aluminum body is mounted on a steel ladder frame. In the front is a parallel leading link rigid suspension using 1/4 ellipse leaf springs and a dead axle from a ford truck. In the rear is also a parallel leading link rigid suspension, combined with an air suspension for large trucks with Koni shocks.
The transmission is an Allison HT740 4 speed AT, and in the rear is a Rockwell differential with a pneumatic differential locking mechanism, all taken from large trucks.
The Jay Leno Tank car with its 888 BHP monster engine is definitely one of the most radical custom cars on the road today.