All, I have a 57 plate A3 S-Line TDi 170. I do an 80 mile round trip motorway commute and its got 98k miles on the clock. Its starting to show its age, it runs fine but sometimes the power is jerky under acceleration and with hard acceleration it can vibrate quite badly (probably a wiring loom fault in the engine) So I basically wanna get rid of it and buy and an S3 - don't really wanna sell it privately as I think I'd be selling someone a headache and my conscious would get the better of me. So happy to part ex or sell it one of the "we buy any car" type places. What kinda checks do they do on the car? They quoted me £8400 which I'd take. Do they take it for a test drive or just turn up, have a look at it and take it away? What kinda money do you think I'd get from a part ex when getting an S3 (09-10 plate)? Other than I think its gonna die on the M5 in the near future its cosmetically spotless with full dealer service history. Its also got a Bluefin remap but I guess I can remap it back. Any advice or experience with we buy any car type places much appreciated. Lee PS - Anyone changed from a 2.0TDi to the S3 for motorway commuting, what kinda jump up in fuel bills do you see?