The first Boxer was the 365 GT4 BB shown at the 1971 Turin Motor Show. It was finally released for sale in 1973 at the Paris Motor Show.
Though it shared its numerical designation with the Daytona, the Boxer was as different as could be. It was a mid-engined car like the Dino, and the flat-12 engine was mounted longitudinally rather than transversely.
The engine shared its internal dimensions with the V12 from the Daytona, but was spread out to 180°. It produced 380 hp and was mounted above a five-speed manual transmission. One major difference in this engine was its use of timing belts rather than chains.
The Pininfarina body was an angular wedge with popup headlights, and remains quite modern looking. 387 examples were built.The 365 was updated as the 512BB in 1976. The engine was larger at 4942 cc, but power was off to 360 hp. 929 512BBs were produced.
The fuel injected 512BBi was the last of the series. Introduced in 1981, it was cleaner but produced the same power from the 5.0L Fuel-injected V12. 1,007 512BBi models were produced. production ran from 1981-1984
