Why won't M3 e46 rear wheels fit?

[notax]

Ideally need to use M3 rears this Saturday at Castle Combe for the drift competition. I know they don't fit a standard car - will they fit mine as it has big arches - or is the probelm fouling the inside suspension etc..? Can't check as car is in Wales with Spaceman...

[ultegra]

http://www.alloywheelsdirect.net/bmw_alloy_wheels

says bolt patterns and centre bores are the same between e36 and e46 m3

can only be offset or overall width....

[notax]

Thanks, they worked a treat and filled the arches nicely too Gong to keep my eyes open for a couple more...

[M3 Compact]

Sunbmw uses them with an unarched E36 AFAIK.