 I traded a 2005 E320CDI for this 2007 BLUETEC. While my 2005 was a very good car, the handling of this BLUTEC is much improved, particularly the steering. The outside mirrors also are improved. I also have a transmision problem, it shifts jerky on take off, in first and second gear. Had it at the dealer several times for this problem. The dealer did confirm to me that Mercedes is aware of this rough shifting and is working on a solution. I was told it has something to do with the tourque curve of the diesel engine. I was given a Mercedes code number and was told the fix would happen after January first. I am sure Mercedes will get a handle on it very soon.