The problem is it is made of aluminium and not many body shops can properly fix it. I think I heard there are 3 places in the US to do it (and I recall correctly they are the BMW VPCs- NJ, Greer, SC and Oxnard, CA). The Ferrari F50 (maybe also the F40) was in the same boat due to the carbon fiber body. I think the Audi A8 must also be reapaired that way since it is also a mostly aluminium contruction.