Quote:
Originally Posted by maswastage
Sure you may average 24mpg in your 135, but how much of that is highway driving? I used to average 35 when my commute was 75% highway, but that's hardly a fair representation of "combined" mpg.
The math may be a bit off because the number I used for comparison, the 27 mpg combined figure for the US 335d, is demonstrably low. In 50-50 mixed driving it's actually closer to 30-31 mpg. Even using 31 in the proportion, the estimated efficiency for the 4 cylinder is 25.7. Not exactly ground breaking.
|
Steady 65 gets me 31+ mpg. 24-5 mpg 50-50 driving. Now drop 2 cylinders from an N55 and you get the new I4T, so the 25.7 mpg doesn't jive. If you make the new I4T with same power as the N55 then I might consider your #s.