I don't want to quibble too much, but I purposefully did not spec. the Grand Tourismo edition because it is significantly bigger than both the Tesla 3 and the stock BMW 3 (190" vs. 184") which, for me, is not apples to apples. That's why you get $65K and I get $52K. The GT is about halfway between a Model 3 and a Model S. But heck, maybe people will compare the GT and not the shorter 3 series.
I agree, though, that if they can solve the battery overheating and weight issues (see: Nurburgring) that have kept Tesla off the track, they should price that Model 3 configuration like an M3, which can go north of $90K. I don't expect the 3 to be a sports/track car, but maybe some others would, and maybe they'll be right!