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      03-04-2021, 02:31 AM   #20
SeanWRT
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Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

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Regarding the power perception:

1) It doesn't take the AWD to feel torquey. The F8X is already strong stock and RWD and slipping easily, and the F8X CS somehow feels way stronger everywhere. Plenty other examples inside and outside the BMW.

2) If base model underwhelms, so will the higher end variant. What you feel weak is the low down torque vacuum with the S58 which is a physical nature of its inappropriately sized big turbo for a 3.0L. The comp model in a higher state of tune is not going to fix it, as evidenced by all the aftermarket solution for the S58. What can be changed via programming is the throttle sensitivity, but the factory won't do that only to compromise throttle modulation and hurt fuel economy which they're struggling to improve for compliance, plus you're not really getting much power off boost but huge jerkiness on boost.

3) The X3M drag performance already went from underrated to overrated. People are blind sighted taking E50 tune result and lying to themselves that's what it's capable of day to day. Go check what the F8X with E50 accomplishes. And go check every single other car in this performance category under the same condition. Not much of a difference, really.

4) Fitting a huge turbo to the S58 is a huge mistake in my opinion, unless you want to tune.

The Alpina already acknowledged that and change to a smaller turbo for much better responsiveness (stronger power perception) and, wait for it, identical if not better overall acceleration compared to the G8X competition, stock for stock.
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