Some cars are all about the motor. And some motors are more special than others. I’m tracking the dwindling number of V-10’s and V-12’s carried by CarMax, and I think snagging one of these unicorns with the MaxCare warranty is still a bargain. Special engine – no unexpected repairs – what’s not to like? The 500hp BMW V-10 found in the 2005-2009 M5 and M6 is pretty special. I drove both, with the SMG transmission, and snapping through the gears up to 8,000 rpm is a pretty exciting (scary?) rip-roaring experience. Old school horsepower mated to a high-tech transmission. I’m still kicking myself for not buying the 2008 M6 with less than 40,000 miles for only $23,998. That was a deal.
For now, these two are available from CarMax. The one owner California M5 link is here; if it’s dead the car is sold, on hold or being transferred. The Connecticut M6 link is here; same story on the link. 
