I'm also curious to see if Tesla holds the lead it's earned in the US EV market.
Huge batteries are really expensive. Just the Model 3's battery by itself is something on the order of $10,000 worth at retail costs.
My decision now not to buy a tesla is about elon musk's public behavior (I could afford the $37,750 if I wanted to, but TBH, I buy used cars now).
The Leaf is actually affordable for regular people. The Leaf is the mainstream EV.
Also, what other EVs are out there in mass quantities? The Bolt only just came out, same with the i3? That's not a huge mainstream market at all.
Tesla sold 141000 Model 3 in the US in addition to the 126000 Model S and X you note in that period. The total is 267000 cars in the US compared to the leafs 126000.
The i3 has been available in the US since 2014, the Bolt since 2016, which is hardly "just came out". However neither car sells in volume, both are well below 2000 per month over that period.