Il Papero the Ferrari 250 GTO berlinetta prototype (0523GT) developed by Giotto Bizarrini ordered by Enzo Ferrari around 1961.
Giotto Bizzarrini took his old 250 GT Boano, known as the ‘Cavia’ (‘Guinea-pig’), that he normally used as his company car. This had been Enzo Ferrari’s daily “driver” in 1956 and ’57, chassis number 0523 GT. Bizzarrini shortened the wheelbase of 0523 GT to that of the SWB and strengthened the side members of the chassis to improve the general chassis stiffness. An improvement in weight distribution was achieved by moving the engine 20 cm back in the chassis and lowering it somewhat. The body was hand beaten without the help of good body-workers tools. The aerodynamics were taken care of by lowering the front part of the body.
