Which Italian kart chassis manufacturer is made by Enzo is used for kart racing? 
MBA karts: MBA karts is an Italian kart chassis manufacturer. MBA karts:  MBA karts are made by Enzo, an Italian engineer and kart racer himself. Kart racing: Kart racing or karting is a variant of open-wheel motorsport with small, open, four-wheeled vehicles called "karts", "go-karts", or "gearbox/shifter karts" depending on the design.
MBA karts