Ferrari F40

In 1974, Ferrari shifted focus to Formula 1, leading to the end of their successful prototype and GT racers era. This change forced many privateers to either retire or switch manufacturers. Michelotto, a motorsport firm from Padova, Italy, stepped in to convert Ferrari's GT road cars into racers, with some unofficial support from Ferrari. Initially successful, the limitations of Ferrari's road cars for racing became apparent with the 512 BB LM. By the 1980s, Ferrari focused on a new Turbocharged V6 engine and the potential Group B rally contender, the 288 GTO, visually similar to the 308 GTB but mechanically distinct. To race the 288 GTO, at least 200 production models were required; these sold out before production began. Michelotto developed the 288 GTO into a more aerodynamic and powerful 'Evolution' model. However, Group B racing was discontinued for safety reasons before these six Evolutions could compete.