V12
MB Enthusiast
29mpg from a CL500 will be gentle motorway driving. The S320cdi will get near 50mpg with the same driving.
The difference around town is smaller. CL500 just under 20mpg ish and the S320cdi will get under 30mpg.
The difference around town is smaller. CL500 just under 20mpg ish and the S320cdi will get under 30mpg.