Some don't like the car, but I have dozens of people telling me how much they like it. I had a 2004 645ci and it went like stink. Now my 650 simply is fantastic. Both cars have the most amazing grip and impart a feel of confidence. The iDrive isn't too bad, if you can't master it you must have a very short span of attention.
Lovely expensive sounding exhaust. Stunning performance, who needs the M6. The interior has to be the best around. Quality is tops, although I find the interior door finishing are a little delicate and easy to damage. I love the car. I love it's space. It is a winner.
Tyres are a little harsh, but only over nasty surfaces.