Well, crashing is always a risk in racing. The other thing I think would be the most problematic for you is the stock brakes. They'll probably overheat and fade dramatically if you push them hard. If they do last for the day, you'll probably need new ones soon after. Your tires will take quite a beating too. Those two items could be pretty expensive to replace. Other than that, I think you'll find your 4.8 to be pretty amazing on the track for what it is, but keeping up with the smaller modded cars will be tough.

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'08 335i Coupe - Barbera Red / Saddle Leather / Light Poplar Wood / 6spd Manual
Options: Sport, Premium, Cold Weather, Comfort Access, Active Steering (awesome!), Power Rear Shade, IPod Adapter, Navigation w/IDrive
Mods: M6 Wheels, Split Armrest, M-Steering Wheel, Euro Light Switch w/Rear Fog Lights, Short Shift Knob w/Matching E-Brake Handle, Clear Reflectors, CDV, Clear Bra

Retired:'04 X5 4.4i