W209 CLK55 and W203 C55 driving experiences are similar?
The 2005 C55 also got all the mechanical performance upgrades to improve handling as the 2005 CLK55 AMG. Because the C55 is lighter and has a proper B-pillar, my guess is that the C55 would feel a bit more nimble and solid around corners.
The number of doors has zero impact on any performance parameter, unless the extra doors resuted in a significant increase in weight (which is NOT the case with the C55 vs CLK55).



