As I near the deliver of my M3 RWD Tesla, my wife is having a little anxiety. I have tried to assure her that over the life of the vehicle it would be a savings. But she asks, "why can't we just get a $20,000 car?" I was averaging some costs of the ICE versus the Tesla and while the initial cost is obviously higher, I think the five year cost is less. If I figure the cost of $20,000, plus gas ($3 per gallon), other maintenance, plus higher registration, extended warranties, etc. The cost of a $20,000 car over 5 years is roughly $42,000. Wheras, the cost of a $50,000 Tesla, plus $3,500 for tax title license, cost of elect, future registration, it is less than $40,000. So the difference is marginal, but I am obviously getting a much nicer car. Am I missing anything?