You would do well to avoid any of these vehicles with a "clicking" noise coming from under the hood. This is what mine had and due to the same sound occurring on my previous car without any problems, this did not trouble me. About 3 months after purchasing the vehicle, there was a sound similar to that made when grounding a vehicle after a particularly high speed turn, then there was a severe loss of power. This turned out to be a dead motor ... which ended up costing more than the original price of the vehicle. Do not buy this vehicle unless it has a complete maintenance history with every possible thing that could go wrong being fixed prior to buying.
Exhaust note with no pre-cats. Gearbox with the B&M Short Throw Shift kit installed. New motor clutch suspension setup (Bilstein Coilovers). Midnight Blue interior. Can kick just about any BMW from the last decade excluding the M3 Hatchback through M5 and the E46 M3 in every category.