But, as with most people I want to get abit more information about the car before I venture into S3 ownership. If anyone can help me I'd be grateful

1. I've been told there are 2 variations of S3 - 210bhp/225bhp.
Is there a definitive cross over point between the bhp variations?
What are the differences in the engine?
With the 'stage 1' remap that most places offer, can they be taken to the same power safely?
2. Are they reliable? Obviously Audi are a good marque, but can the S3 take some hammer; suspension/brakes etc? At what mileage do the serious bits of the engine - piston rings/turbo start to fail?
3. Are their any known 'faults' to look out for when buying one? Is there a buying guide anywhere?
I think that all for now. Thanks in advance to anyone that can help
