impreziv 
2006 BMW M5 Sedan 4dr Sedan (5.0L 10cyl 7AM)
Bow down,  the King has returned!
 The BMW M5 has always been the leader of the performance sedan class.   Overall,  the power, handling, comfort is unsurpassed.   My trip to the local dragstrip showed 12.2 in the 1/4mile, finishing at 117mph.   Thats faster than all current Lambos, Benz sedans, pre-03 Vipers.  The car has yet to disappoint me.  but maybe I'm to preoccupied with the performance side to notice anything wrong.  If you want supercar-like performance,  but need four doors,  this is the car for you.  If you just want a status-symbol sedan, dont buy it.  This car takes a certain breed of driver to appriciate it.  It is more of a moneypit than most cars. I have averaged 11mpg,  even driving within speed-limits.  