· ISO MOTO
The company, having added many other new models with engines ranging from 49 cc to 500 cc, enjoyed much growth during this period.
Renzo and his team created an important sales network for all the Iso products, with 1,686 dealers in Italy and general distributors in 67 countries, eventually exceeding production of 1,000,000 units—an extraordinary number for that period.
Due to this extreme volume, a track was built on the factory grounds to avoid potential accidents during vehicle testing. It employed an elevated curve similar to the one at the Monza track at that time.
A young Piero made use of the different Isomoto models quite a lot, fuelling his passion for speed which, to the relief of his father, he transferred to cars at the age of 18. Renzo always worried for his son, who enjoyed driving at full speed on two wheels.