Over-priced? For what it was, yes, but some of that was the BMW badge. And the interior was nicer than the competition, too. But the lead I'm referring to is being one of the first three to mass-produce EVs, and one of those three was an unknown (Tesla). BMW already knew how to build cars, they just needed to learn how to electrify them. Tesla had to go learn how to build cars, which I'll assume was harder than electrifying something you already know how to build. So while Tesla was jamming pieces of 2x4 wood into fender panels, and zip-tying pieces together, Tesla was still becoming BMW faster than BMW was becoming Tesla (to horribly butcher a Netflix CEO's words). Only the last couple of years have seen BMW trickle out something that isn't an i3.
As for Nissan, I'm with you on Chevy's competition. But I was on about how they were the first modern manufacturer of mass-produced BEVs and eleven years later...they still have just the one model that sits on the low-end. And as you point out, that singular model's lunch is probably getting eaten by Chevy Bolts.