Originally Posted by rhouck
Make sure to do research on S54 (and e46 in general) track reliability as well prior to purchasing. Kaiv here on m3post tracked his extensively and might be able to talk you through any potential issues and costs.
Thanks. Found a 2003 SMG Sport package that seems appealing. Transmission didn't clunk when changing gears and didn't shudder upon start up when warm...engine seemed to be strong, no weird sounds or rattles and everything was in good working order. One owner car and 100% stock.
I'm bringing it to the best shop in OC (MRF Engineering) to do a PPI tomorrow so I will be informed by an expert as to whether this particular car is in decent shape to use as a track car.