EV or not EV, I really think you want 200A service? It has been the standard for quite a few years, and I cannot imagine only having 100A service in a proper house (would be fine for an apartment or whatnot). Now I am higher electric usage than most, but I hit over 100A several times a day (but have never hit 200A and flipped my breaker).
The actually switching out your circuit breaker from 100A to 200A is cheap (2-3k?). Almost all of the cost is for the utility to run you a bigger line, and they can pretty much charge you anything they want (what is your alternative if you don't like the price?)
The actually switching out your circuit breaker from 100A to 200A is cheap (2-3k?). Almost all of the cost is for the utility to run you a bigger line, and they can pretty much charge you anything they want (what is your alternative if you don't like the price?)