The MTX-3 is already a very strong car. I have only broken front knuckles and bent one of my front universals (but that's because i don't drive all that well). It can take a beating. The Prospec is the exact same at the MTX-3 only it already has all of the hopups (or most of them anyway) that you would need for it. I just bought one myself and will be building it probably next week.