Quote:
Originally Posted by Carl L
With all due respect, it's hard to take you seriously when you make up bizarre statements about mileage and CO2 etc on an unreleased engine.
But to answer your question, considering Mercedes are getting Euro 33.6mpg combined out of a 5.5, it's pretty obvious that the mpg and emissions will be significantly better on this new engine than on the 6 year old S65.
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+1.
The new M3/4 WILL indeed have significantly better fuel efficiency than the current model. It also WILL have significantly less CO2 output (basically the same thing as mpg). It will also have much better than 14-16 mpg city. The closest example for reference is the I6 turbo in the 1M. That gets 19/26. The new M will be a bit heavier but will also likely have an 8 speed transmission where 8th gear will very likely be an overdrive type of gear. I actually expect better fuel efficiency than the 1M simply due to all of the engine redesigns and improved component efficiency, new/improved VANOS, improved direct injection, etc. My prediction is that both first digits of the city/highway mpg will actually be 2's. If babied on cruise control I'd be willing to bet the car will be capable of 30 mpg.