[II kings 9:20]

The use of a full size spare poses a potentially big problem. The new 300 is the first car designed to pass the 50mph rear impact standard two years ahead of the requriement. The rear compact spare is mounted at an angle and designed to rotate upward and not into the gas tank or rear seat. The fittment of a different size wheel and tire back there not designed as part of the rear crash structure may the car's rear impact crashworthiness. What is up with the need for a full size spare anyway. In over 25 years of driving I have never had to change a flat while on the road. Yes, on rare occasion I have had a flat in the morning and either changed it or took the other car to work.