All the performance parts in the world aren't going to mean **** if the 8"x12" contact patches on each tire are crap. Tires is the last place to cheap out, especially on a car like an m3. Can't afford the maintenance? Don't buy the car.
Clarkson on the 1M: "There's a straight six engine at the front, a manual gearbox in the middle, and drive goes to the back. That's page 1, chapter 1 from the petrosexual handbook."