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Originally Posted by BMW M3 CRT
Nice informative article on the new S55 engine. Just between the lines is a lot to experience about the character of the new M engine.
Completely without a doubt the new M3/M4 F8X will put the old E9x M3 in all the disciplines of driving dynamics clearly in the shadows.
But I 'm pretty sure that an F8X M3/M4 with an S65 and the old M- DCT would most likely beat the F8X with the S55 on the track and in any case it would be much easier with him to be fast on the track.
This is certainly not easy to explain, but neither hp nor torque make a car on the track really fast, but the "driveability" of the vehicle , ie the combination of linear power delivery, stiffness of body and powertrain , stable brakes , perfect suspension and good traction. In all respects (except for the first) , and the slightly lower weight , the new M3/M4 has increased performence and that makes him so fast, so that it does not play here the role that the engine is not so perfect in terms of " driveability " .
Sure , the S55 with its higher torque feels purely subjective considerably stronger than the old S65 , but this felt more power is much more difficult to optimally implement into propulsion , as the S65 where the power is very linear implement in perfect propulsion - extremely fast revving and perfectly linear power curve are the key words here.
Unfortunately, there is no way to get an F8X M3/M4 with S65 and the old M-DCT, so that the ultimate evidence, that an S65 would have been the better engine choice for the F8X specifically on the track, will not be rendered.
Greeting BMW M3 CRT
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The same thing was said about the E9X M3 compared to the E46 M3 by people who thinks anything new is better.
In reality if you participate in some grassroot racing you know it's all marketing bs both cars run similar times and when both modded the E46 M3 has an edge.
Unlike the E30 M3 or E36 M3 that did really well in their SCCA classes when they came out this car like the E9X M3 wont be competitive in AS.