Something went wrong here fella, doesn't sound right.
Lad at work has an FK 2.2CDTI (140hp ish) Civic and it's not as quick in all areas as my A3 2.0TDI 170ps version, not forgetting my cars heavier... And my Audi isn't quite as quick as my MK5 GTI (which presumably you have). I'd say the GTI was quicker off the line because of the TDI gear ratios and extra weight, but in gear it would be a lot closer, I'd still fancy the GTI though on road and track.
Based on this, his can't have been standard, or he was super prepared and you were desperately unlucky with traction/similar, or, the Civic was badged wrongly for this reason
I now Rich (richwig) has a TDI badge on his Edition 30