C207 E Coupe 350cdi, W166 ML 250 Cdi Sport, R171 SLK 350, Suzuki V Strom DL650
A bit late to this thread . But my two pennies.
I was given a 300c for the week by Hertz in the US a few months ago. I hated it , steering wheel too big, seats not comfortable, and felt like it would not go round corners (there aren't too many to try in the US), but did try a few manouevres in the Hilton car park when it was empty
I have driven a lot of W210's and for me there is no comparison, I would have the Mercedes every time irrespective of price.