Mercedes 2002 class 240 or 320 better ?

Question

I have a choice between Mercedes 2002 class 240 and 320

both got the same price

I want to know is 240 much more efficient than 320

what is the average fule consumption of any of the cars

Answer 1

The C240 is slightly more fuel efficient as it has a smaller engine ( 2.6 vs. 3.2 L V6 ) but it is also much slower car.  

The official numbers for the 240 are 17/24 while the 320 comes in at 17/23 for the city and highway respectively.  I'd go for the 320 simply because it is a peppier car and also some equipment that came standard on the C320 was optional on the C240.