The C220 has lower emissions and better economy according to the official figures especially the later facelift models. C220 is twin turbo. so maybe its designed for good economy if you drive gently and more power if you drive it harder.
I wouldnt imagine a huge difference in normal use.
The C220 has lower emissions and better economy according to the official figures especially the later facelift models. C220 is twin turbo. so maybe its designed for good economy if you drive gently and more power if you drive it harder. I wouldnt imagine a huge difference in normal use.
For what it's worth, I'm getting good results with the c250 version, averaging around 60mpg since new 40k miles ago, about a quarter of which has been city commuting.