Quote:
Originally Posted by CanAutM3
It is more like 10hp on paper. I am guessing that the 430hp number that is quoted is DIN, so it needs to be compared to the 420hp DIN of the S65.
This, combined with the weight discussion, is why I have been saying in other threads that, on paper, the F8X does not show a big power to weight advantage compared to the E9X. The top performing model is the DCT. Assuming that the 80kg reduction applies to a 6MT (which contributes to a 26lb saving), the DCT F8X will only have a 150lb advantage compared to a DCT E9X. With a 175lb driver, it will only have a 6% improvement in power to weight. As a comparison, the E9X brought us a 13% improvement in power to weight vs the E46. With the light bolt on mods I have on my car, I am probably very close to the F8X top power to weight figure. This is all on paper though...
A big advantage the S55 has over the S65 is the broad power plateau. The S55 will be putting down more average power during an acceleration run vs the S65.
Further, IMO, the S55 is likely under rated by a good 20 to 30 hp, giving it a further advantage.
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Quote:
Originally Posted by CanAutM3
I am guessing that the 80kg reduction includes the 12kg from the improved 6MT. So only a 68kg reduction for a DCT car.
E92 M3: 3704 lb
F82 M4: 3554 lb (simply 68 kg less)
Even closer to your original estimate of 3590  |
BMW has said that the F8x will be 80kg lighter than a
comparably specced E9x.
Where do we get the "if it has a DCT it will only be 68kg lighter" from
