l. conroe 
2003 BMW 7 Series Sedan 745i 4dr Sedan (4.4L 8cyl 6A)
I can't believe
 The 745i is a great car when I am able to drive it. I've spent countless hours driving back and forth to the dealership because of malfunctions. It's great they give free maintenance for the first 50 thousand miles because you will need it. My gripe is that I maintained my car with regular service. The "check engine light" came on. I thought it would be some minor repair. Turns out the repair cost is $12000 for "CARBON' on the cylinder head!!!!-not a blown head gasket, but CARBON!! That's like telling me the brake dust on my rotors require a new axle! The ULTIMATE MACHINE has a poorly designed engine if carbon build up requires 12 grand of service. No More BMW for me - Honda/Infiniti here I am.