I dont get it. It looks just like a 3 series wagon. Is it bigger or something. Whats diiferent about it

__________________
Dinan M3

1999 M3 Dinan S3
2001 M3 Dinan S2 (SOLD to make room for E92 M3)
2002 M5
2004 X5 4.4i sport (Sold for 335 XI)
2006 X5 4.4i sport
2007 335 XI
E92 M3 on order