Hi All, I bought a C55 AMG about a month ago and am a little bit shocked at the condition it was kept it, though I got it at a steal, there is a lot of work that needs to be done. My biggest concern is with the drive itself, though it is lovely and fast when it needs to be - there is a lot of lag when pressing the acceleration. Another worrying bit is that when in manual it only shows 4 gears and after 4, it goes into auto. I know it's an older car and things happen after time, but is there any any way I can get the car back to as close to original drive and reaction as possible? I have done an ECU reset and the drive is very different! I also need parts, so was wondering where to get OEM AMG parts (or is that a necessity?). One more thing, is there a difference between an MB mechanic and an AMG mechanic? Thanks for your help!