Revived Italian sports car marque Bizzarrini is working on a new V-12 supercar, and we were given a teasing look this week. It’s called the Giotto, after Bizzarrini founder Giotto Bizzarrini, and Giorgetto Giugiaro has been tapped to help design the car. Chevrolet is jumping into the customer racing game with a new GT3-spec customer race car based…