2008 was the last year BMW made the M5's with a V10 so get your hands on one today. The 2008 BMW M5 price depends on several factors, including the trim level, optional features, mileage ...
What might surprise you is that the older car is the heavier one. Sure, BMW blessed the V8 M5 with exotic aluminum for its suspension components, but this was a time before carbon fiber roofs.