The 575MM has a fully redesigned interior. It also has a redesigned front bumper (ugly imo) that improves airflow to the engine. It also has a bigger engine making 515hp and of course, the F1 tranny. This was the first time the F1 is in a 12 cyl car. Ferrari wanted to put it in the F50, but it wasnt ready in time. If you look at the dash on an F50, you will see a screen that was supposed to be the current gear display screen for the f1 system. The rear suspension isnt F1 car suspension. F1 car suspension is extremely stiff (2000+ lb spring rates). The shocks are inbound and are controlled by pushrods, as in an F1 car. It is similar to that of a race car because the engine and tranny are stressed members, that is they act as support for the rear suspension, bumper and body. The F50 is the first road car to ever have this. Ferrari said it was as close to an F1 car as it could make for the street, but i dont agree with this. How could that be true if it had a 12cyl while F1 cars had 10 cyl engines? They could have made it faster and better handling. The one thing it had in common with an f1 car is that its use of a carbon fiber monocoque and the way it was deigned was unique and technologically advanced.