Dan - I think there is very little chance a 380mm disc is going to fit behind a standard 18 inch rim, surely it doesnt have the clearance?

My 356mm discs n aps only JUUUST fit under my 18's on my m3.

I think brakes are the one key area where a mondy st220 falls down (my dad has one) and think a brake upgrade kit would really really help the car