Why buy a E320 when you can get a E320 CDI! Amazing torque (no hesistancy), smooth ride, great handling, huge trunk, and unbelieveable fuel mileage (not to mention diesel is cheaper). On the road I get around 36.5 miles per gallon, that's driving 70 mph. The only way I will get rid of this car is when Mercedes produces a CDI wagon.
Engine torque. I also love the fold-down back seat. My wife and I use it all the time. We go to Lowe's and Home Depot a lot.