Now he had six moths to feed. In order to do that and to finance the construction of the first competition ISO, that was to become the first Bizzarrini, he did most of the design work on the Ferrarina, the ASA Mille. During that time he learned that another industrialist by the name of Ferruccio Lamborghini who was manufacturing tractors, was also making a car. Lamborghini needed an engine that would be a Ferrari beater. The people around him told him that Bizzarrini was the man to design this engine and Bizzarrini needed a quick income. The brief was to make a 3.5 litre12 cylinder engine (Ferrari was only 3.0 litre) that would produce at least 350 HP. If the engine would be more powerful, Bizzarrini would be paid more and vice versa. Bizzarrini worked furiously that winter 1962-1963 and after only four months he had the complete prototype four cam V12 engine ready for testing. On the first dyno test it produced 358 HP at 9.800 RPM. Ferruccio Lamborghini was furious. He roared that he had not ordered a high reving racing machine and that he would not pay Bizzarrini for his work. Eventually Bizzarrini was paid as agreed and the basic engine design is still used even though it has been developed over the years.		In 1963 Bizzarrini decided to start his own company – Prototipo Bizzarrini. The A3C was doing very well on the racetracks and Bizzarrini figured that he could also develop a street version that would sell well. The A3C became the Bizzarrini 5300 Corsa and then came also the Strada. Beautiful cars that looked like they were doing 300 km/h when standing still. The 5300 model was made in several different versions using both glass fibre and aluminium bodies. A few cars also become topless spider versions. These were happy days for Bizzarrini. The cars sold well both in Europe and in USA and Bizzarrini could go racing the way he always wanted to.