I was thinking about the performance boost too. Just picked up my MYLR with Gemini wheels on Sunday (you can find my note in on page 2190 of this forum). So far (but only three days of driving it) I'm not feeling the need for the boost. This thing pulls hard enough at any speed that you can still scare your passenger. There's a feeling of constant/instant thrust that you dont get in an ICE car. I suggest living with it a few weeks before deciding. If you've havent already installed a wall charger, you could pay for the that and install for usually less $$ than the performance boost, and that you'll get to use every day.I was considering doing it, but after driving this for almost a week, I will need to test drive a performance model to be able to appreciate the difference, because the LR is still super quick. I will say if they add track mode for the AB that may be the thing that sways me...as of now, I am probably 60 - 40 not getting it.
Lockett Tech guy bought it and did a review.