1stBMWLastBMW? 
2005 BMW 5 Series Sedan 545i 4dr Sedan (4.4L 8cyl 6M)
Is it a Lemon?
 Took ownership end of Feb. Less than 12 hours later the car said I had a flat. Had to wait 1/2 day to diagnose myself and reset. A week later the computer reboots while doing the voice commands. A week or two after that Navigation tells me I'm driving in the ocean. Took it in and a week later it's fixed but after the s/w upgrade the computer rebooted twice (after it went to sleep a 2 days). Locking the car doesn't blink the lights nor chimes (intermitent). Going up the hill, it feels like it wants to stall (but doesn't). And now the latest: Steering wheel is pointing right.  I feel like I'm driving a very expensive, very poorly designed car.  Current mileage (1700)