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      08-14-2012, 04:36 PM   #10
Red Bread
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Drives: Smog machines
Join Date: Oct 2008
Location: Austin, TX

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Quote:
Originally Posted by Monterra View Post
A second faster and I'm assuming a much better soundtrack. 27 vs. 30 hwy isn't exactly a game changer for me. You think real world = wider mpg spread?
I can't imagine that it's a second faster to 60, as the F30 difference is more like half a second, or less, and that's with both cars having the same transmission. The E90 335i vs F30 335i mileage changed substantially, from 19/28 to 23/33. While that's a change in chassis, the weight didn't change much but the change to the 8s accounts for nearly all of that, with a smidge for auto start/stop.

So just the handicap of the 35i having the older, less efficient transmission is sizable. I'd guess that real world, there's less than half a second between the two X1's 0-60 and that the 28i gets five or six mpg better.

But yes, the 35i will have a better soundtrack. However both petrol motors will sound like a diesel at idle, our N54 135i makes a hideous racket at idle, the DI pump sounds just like a diesel. Speeds beyond 60 will obviously heavily favor the 35i too, but my wife lives less than two miles from her office, so the 135i has largely been wasted on her.

Last edited by Red Bread; 08-14-2012 at 04:42 PM..
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