Bonetto B1-4WD: High-performance Fiat 500 Abarth with 350 CV

The Bonetto B1-4WD is a high-performance, road-legal evolution of the Fiat 500 Abarth, developed by Alessandro Bonetto’s workshop in Turin. This custom vehicle features a carbon fiber body that has been widened by 15 centimeters on each side, resulting in a 30-centimeter increase in total track width.

Replacing the standard 1.4 turbo engine is an Alfa Romeo-sourced 1750 TBi four-cylinder engine, tuned to produce 350 CV. This powerplant is paired with a six-speed manual transmission and a sophisticated all-wheel-drive system. The drivetrain features variable torque distribution, capable of shifting from a 50/50 balance to a 20/80 split favoring the rear axle.

To manage the increased power, the vehicle is equipped with two limited-slip differentials, Öhlins TTX four-way adjustable dampers, and a Brembo braking system consisting of 355 mm front and 330 mm rear discs.