Thanks everyone, my other half is also a CPA .
I am trying to upgrade to 2020 because a) I want apple carplay, we don't use the maps on Prius and use Waze. 2) I have 44k miles on my car, I am getting 21k in trade in to new prius prime limited (30k), the difference is 9k, but then I will get back 4.5k in tax credit and $500 from state, so in turn I will only spend 4k-5k (If I include tax and doc fee etc) to get the newer model.
Now if I get Model 3, then my out of pocket will be
43k for SR+ - 23k(selling to private party as tesla is only offering 18.5k)=20k+tax=21.2-3.2k(state and federal incentives)=18k so it is about 13k more than what I was planning. So if I assume that I will spend $600/year for gas for next 5 years and for electricity is free as I may have surplus solar (extreme scenario), then also I am paying 10k more.
Now if after 5 years with 75k miles I am able to sell Model 3 say for 20k, and Prius Prime for 15k, then buying Prius will be good, but if my Model 3 is going to hold the value upto 30k, then probably a better buy.
How much $ value to you put on the silly grin on your face(s) when you are enjoying the model 3?