Spent this afternoon mocking up the diffuser- fuel tank and rear axle installed (but will need to remove them again for the final bit of welding).
Diffuser needs to be higher at the rear, which is tomorrow's job hopefully- then I can cut my proper bumper and make a neat job of everything.
Will need a new exhaust as the old backbox doesn't fit.
Excuse the iPhone pics:
Point of view from air underneath the car:
Side profile (rear needs to be raised):
DTM Polo:
Doesn't stick out that much:
Currently there's about 1" between the diffuser and rear axle- Ideally this gap is as small as possible:
Will be making a Mk2 diffuser from ally at some point anyway, so not going to worry too much right now.