Potentially I have the option to buy an S3 cheap but it has 120k on the clocks. The thing will get a hard life from now on but will be looked after. What goes wrong transmission wise? Is 120k too many to convert to a track car? What other upgrades should I consider (transmission wise) if I'm remaping / IHI'ing? I'm concerned that I'll break something and it'll be expensive to put right. The other option I am looking at is maybe a Golf V6 4motion and this could have significantly less miles on it for the same money (say 60k or 70k). What do I do?