If I didn't have kids, and IF I didn't already own a Mercedes sedan, I'd have gone for a BMW sedan.. Unless you absolutely need the SUV, get the sedan.. it's going to be more fun to drive, and better on gas.

__________________
BMW - X5 4.8i w/all US options packages, 19" Y wheels, White/Tobacco, Huper Optik 50% tint
Mercedes Benz - E320 CDI Park Assist, NAV, Folding Mirrors, Premium Sound, Voice Command, Sunroof, Auto Rear Shade, Bi-Xenon