I am trying to decide on taking order of a custom 90D or an inventory P90D. What should I do? I don't drive fast, but I don't want to regret not having the wonderful Tesla acceleration I have grown to love over so many years of test driving. Hence the draw to the P90D. Also, P90D immediate availability would guarantee fee supercharging. 90D is obviously cheaper and more aligned with my practical side allowing me to invest those funds elsewhere. I am also drawn to a custom build experience and feeling like it was made just for me. However it makes me fear regret of not going for the P. Delivery for my 90D order is listed as "March, 2017 - early April 2017", so I might miss out on free supercharging. Ugh!