I recalled my M3 had that pwr button which did the same. It made the car quite jumpy and I didn't like it at all.
I experienced that slight delay on the Z with the air on a couple of times, but I think it is fine with normal driving.
Quote:
Originally Posted by wanker
Sprint boosters work. Depending on the setting, it reduces or eliminates the electronic delay when you press your accelerator pedal. As cars are now drive my wire, the manufacturers purposely put a .4-.5 second delay on the accelerator as a "safety" devise so the car gas pedal does not feel jumpy. (It mimics the old gas pedals that were drive by wire.)
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