For those thinking that an M uses too much petrol, I managed 30.3 MPG on a 700 miles trip which included about 2 hours worth of stationary traffic jams.
This is keeping within the speed limit tolerance of 10% + 2 on the motorways and mostly on cruise. Temperature was 25c and top down driving (of course).
This is keeping within the speed limit tolerance of 10% + 2 on the motorways and mostly on cruise. Temperature was 25c and top down driving (of course).