Amanda 
2006 BMW 7 Series Sedan 750i 4dr Sedan (4.8L 8cyl 6A)
Love the car ..... Hate the maintenance
 My 750i sport currently has 80k miles. Since about 40k miles the car has been blowing smoke when I idle for more than 5 mins was told it was the valve cover gasket then I was told the valve stem seals and quotes $15k to fix. Not to mention some days the car just won't start I hit the button power comes on cars clicks but does not fire even after having a brand new battery. Tires and brakes every 6months to a year which is $1500. Transmission fault all the time but never have a slip in the transmission. The parking sensors have not worked since about 50k miles and no body can figure out why??? Car is a mess but fun to drive I give it that.