in the interest of fuel efficiency why doesn't bmw go to an ALL TURBO line-up(excepting M cars)? maybe something along these lines:
1 series:base 2.0ltr. 4 cyl. 220hp., optional 2.5ltr. 6 cyl. 280hp.
3 series:base 2.5ltr. 6 cyl. 280hp., optional 3.0ltr. 6 cyl. 330hp.
5 series:base 3.0ltr. 6 cyl. 330hp., optional 3.6ltr. v8 400hp.
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