Originally Posted by gsmith71

I have a CLS55 and an M6. On looks alone, I would go with the CLS. However, the view out of the CLS is compromised whereas the E63 is just easier to drive. I just test drove an E63 wagon right after driving my CLS and the difference was dramatic just from the view from the driver seat perspective. I have to say I still prefer the 55 engine given the immediate low end torque over the 63. The M5 is great, but a very complicated car as I can surmise from my M6 experience. Frustrating to drive in stock and go situations. An E63 would be the easiest to drive around a downtown situation but on the open road, I think an M5 wins from a pure driver excitement perspective.