These are the twelve true 275 GTB Competition cars, as identified by the Ferrari factory. The chassis is type 590A, a special super lightweight chassis, which Scaglietti skinned in a super lightweight aluminium. It was constructed of 028 inch alloy or about have the thickness of the standard 275's.

The engine is a factory 213 Competizione engine, utilizing the 275 LM powerplant with updates and changes. Later modified with 6 carbs, full dry sump motor. Engine compression ratio was 9.3:1.It used Type 130 camshafts and three Weber 40 DF1 carburetors. The block was the 2nd series standard four mount GTB block with the external reinforcing ribs on the sides of the casting. The motor was designed with a special racing crankshaft and forged racing pistons. The cams operated needle bearing rocker arms as used on the GTO's. In order to achieve an extremely lightweight for the car, many engine parts were cast in electron. Wheels are Borrani wires; 7L x 15" Front and 7.5L x 15 Rear.  Tires were Dunlop 5.5 M15 R7 Front, and 6.00 M15 R7 Rear. The bodywork was called "Scaglietti Berlinetta Competizione."