By Carlos De Paula In hindsight it is always easy to criticize decisions that went wrong. On the surface, everything was fine with the World Championship of Makes in the configuration it had in 1971, yet, FISA decided to outlaw the 5-liter Group 5 monster machines, and run the championship exclusively with 3-liter prototypes, which would be essentially Grand Prix racers with prototype bodies. While it is true that only a couple of manufacturers, Porsche and Ferrari, had built new generation 5 liter Group 5s, and these would eventually become old, one gets the feeling that the decision was indeed hasty. Perhaps the 5 liters could contest the championship for a couple more years, ably backed up by 3-liter prototypes as had been the case hitherto. By 1971 the prototypes were no longer grid fillers. Alfa Romeo had won three races on merit, Ferrari was often the fastest car (even faster than the 917 and 512s), and even updated Porsche 908s sprang surprises here ...