Hello Peeps, Can someone please tell me what it is that AUDI do to there 2.0d which increases the bhp from 140bhp to 170bhp. I'm interested in buying an audi A3 3dr S-line, silver with a bit of luck, 06- with the sexy front end. I currently have a mk4 VW golf 1.6 SE (1998), which I love to bits but has seen better days - And since getting a new job, I need a car that can do a few more MPG + treating myself. From what I've searched on autotrader - an A3 S-line 2.0d (140bhp) with mid mileage on the clock (40,000-60,000) go for around £11,000 - £13,000 which is within my price range But the (170bhp) models seem to be much more around £15,000 + Chances are that I will settle for the 140bhp, but I have driven a 170bhp model & it was such a joy! Given that I do go for the 140bhp model I guess I'm afraid that I may feel disapointed sooner or later. What it is that AUDI do to there 2.0d which increases the bhp from 140bhp to 170bhp? Thanks, Dan.