The 6 HP was introduced after Fiat's original Fiat 4 HP, and, alongside the increased horsepower, the vehicle was changed from the original with its reverse gear and uses rear-wheel drive. Fiat also produced a special racing model, the 6 HP Corsa.
Following Fiat's initial Fiat 4 HP, the 6 HP was introduced with increased power output. It differed from the original by incorporating a reverse gear and using rear-wheel drive. Additionally, Fiat produced a specialized racing version of this vehicle called the 6 HP Corsa.