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      11-25-2013, 06:43 PM   #79
CanAutM3
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Drives: 2021 911 turbo
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Quote:
Originally Posted by swamp2 View Post
It was a good question.

But an easy/reliable 4.1-4.2 seconds or a best?
We are talking conservative BMW advertised numbers here.

The math I used is quite simple. Most magazine test data suggest a 1 to 1.2 sec time for the 60 to 70mph on a DCT M3 ("similar" power to weight). Doing a linear interpolation yields a 0.22-0.26 sec time from 60 to 62.15mph.

Quote:
Originally Posted by swamp2 View Post
IIRC BMW speced the E92 M-DCT at 4.7 s to 100 km/h. In reality it's best time was 3.9 s to 60 mph (thus about 4.1 to 100 km/h).
Interestingly, BMW official numbers show only a 0.1 sec difference. The Canadian brochures indicates 4.6/4.8 (DCT/6MT) to 100km/h while the US brochures quotes 4.5/4.7 to 60mph.

Quote:
Originally Posted by swamp2 View Post
I've predicted (through simulation) a 3.4 - 3.8 s for its 0-60 mph run (here). Either way it's darn clear it will be a sub 4.0 s car to 60 mph (some still actually don't believe this...)
Agreed. The F8X will be much faster than that. I also expect best runs to be comfortably in the 3 sec range for the 0-60mph as tested by US car magazines (US accepted test standards). The articles refer to a specially developed PSS for the F8X; I wonder how much improved traction will result.
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