2008 M3 Coupe

I am looking for some opinions. I found a 2008 BMW M3 with 35k miles. It has been in a fender bender. Seller is selling it for market value arguing that a fender bender is not a big deal and it is not an accident and it wont decrease in its value. Is that true? Also it is reported in carfax and autocheck.



What should I offer him? I don't want to over pay specially it has been reported in CarFax. What is the maximum I should pay for it? It has all options of a 2008 model with DCT.