Hello im new to the site and need your help please ppl, My uncle is going to buy a white sierra rs 500 cosworth tomorrow, before he buys it though he wants to know if its a genuine 500 and not a replica. Does anybody know of a website/person that has/knows the chassis numbers to corrospond with a genuine 500. The sierra in question seems to be genuine its got the plaque and everything else to be a 500 but my uncle just wants to be on the safe side.

Any help would be great thanks alot

Craig