Quote:
Originally Posted by heavyD^2
It's a step above in the only metric that matters and that's performance. Take a look at the 3.3 sec 0-60 mph and 11.6 mph 1/4 mile times of the X3M for proof of how potent the engine is. It's a monster and let's face it, the B58 is almost on par with the S55 performance-wise as the Supra and M340i are faster than the F80 M3/M4 in a straight line. The S58 is B58 in steroids. The S55 was and is a good engine but the B58 and S58 are simply newer and better designs.
Don't take my word for it as MB fanboy Jonny Lieberman can't even deny it;
https://www.motortrend.com/news/2020...n-test-review/
In the company of TTV8's in this comparison not a single comment of it being underpowered and in fact quite the opposite. Once the G8x are released then people will realize just how good the engine is.
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Those 0-60 and 1/4 mile ET numbers only tell me that the X3M benefits from AWD traction from a dig. Trap speed tell a better story. The 2016 M3
competiton trapped at 120mph vs the X3M
competion at 119mph as tested by C&D. The M3 is also quicker in the 60-100mph.
https://www.caranddriver.com/reviews...mw-x3-m-drive/
https://www.caranddriver.com/reviews...e-test-review/
The majority of modern turbocharged engines perform better than their power ratings "leads you to believe", that is not a new story. It has to do with how the testing standards are defined. The S58 seems "underrated" in the exact same way the S55 seem "underrated". The fact is that the S58 in competition tune makes ~13% more power than the S55 in competition tune. Power-to-weight is what matters here because it is an apples-to-apples comparison.
That being said, the G8XC will accelerate faster than a F8XC, that's not a question, the power-to-weight ratios tell us that. But power-to-weight also tells us it will unlikely out accelerate a F82 M4
GTS. Which was my earlier point, a faster M4
GTS with its aero downforce and coil-overs did a 7:34 in the AM&S/SA supertest, so it is unlikely a RWD G8XC will be faster than that.