I linked an article on them a little earlier, neat story. We had a guy bring a Gof TDI out to a recent rallycross at my place and he gave a couple GTI's a serious run. It's a quick car and apparently Banks has some tuning items for it too.

I picked up a 1st-gen Toyota MR2 last month and am seriously thinking of putting the VW 1.9L TDI in it. It'd be a real screamer and would launch like a rocket!