I found something interesting yet odd about my Z in the cold weather.. turns out when there is frost on the car, the frost covers the entire top of the car, but doesn't go under the hear latch button (license plate area). I figured it could be the bumped and a differnt material, but if thats the case, it comes up very high on the Z.. does anyone know if it's a different material, or whats goin on? Because if it's plastic like the bumper, then its very high and a rear hit would be terrible damage in the Z.