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Thanks guys. I’ve heard that the most important 0-60 type metric with regards to power in AX is 30-60.
Z428i
0-30: 1.9 seconds
0-60: 5.8 seconds
30-60: 3.9 secondshttp://www.edmunds.com/car-reviews/track-tests/track-tested-2012-bmw-z4-sdrive28i.html
Z435i (couldn’t find 0-30 specs for Z435is)
0-30: 1.6 seconds
0-60: 4.7 seconds
30-60: 3.1 secondsWish I could get the same data from the same source.
In comparison:
228i
0-30: 2.0 seconds
0-60: 5.1 seconds
30-60: 3.1 secondshttp://www.edmunds.com/bmw/2-series/2014/road-test-specs1.html
I guess we could do more comparisons and really figure this out but it does seem strange.
Thanks Jack. After your comment made me realize I could just check to see how the other N20-engined cars are classed.
228i = 41 Base Points, B
328i = 42 Base Points, B
428i = 40 Base Points, B
Z428i = 49 Base Points, B (52 points w/ ZSP)Z435i = 47 Base Points, B (49 points w/ ZSP)
Z435is = 47 Base Points, B (49 points w/ ZSP)It’d be awesome to just have the same number of points as a Z435i. Including the ZSP, I could be in B! Woohoo!
My guess as the potential reason is the difference in engine placement and weight.
The 35is engine is heavier, larger and placed more in front of the front axle. The 28i engine is smaller, lighter and is placed more behind the front axle. Is the rationale that the 28i is dynamically better so it is classed higher?
Can’t ignore the power differences though. 0-60 in 5.6 in the Z428i vs 4.6 in the Z435is.
