Just turned in my 2004 E500 4MATIC for a 2008 E550 4MATIC. The '08 is demonstrably better in virtually every category...build quality, tightness, ride, speed, just overall quality. Mine is black on black with Premium 2, Panoramic Roof, electronic trunk closer, iPOD integration, 6CD, sport package, wood steering wheel, window shades...virtually everything you can get. Hate the standard, and the sport wheels, upgraded to the 18" Mekbuda wheels; added chrome window sill, chrome door handle inserts, and chrome headlight rings. The car is stunningly beautiful. I have had many nice cars, however, I have received more compliments on this car than I could have imagined. Great car!
Engine is smooth and powerful. Panoramic roof. Sirius and iPOD integration. Heated and ventilated seats, window shades.
Find a way to raise the NAV screen. Would like tighter sports suspension. Also, the standard wheels are impossible to keep clean.