As to other manufacturers, they were “building up electric manufacturing capability” before Tesla. Toyota was selling thr first RAV 4 EV before Tesla was even founded. Tesla didn’t have the first EV. It may have the best EV now, but that hardly says anything—it’s much easier to make a $50-100,000 EV than on at a mainstream price point. The remaining question is who is on track to create products in the form factors people care about (not sports sedans) at prices they can afford? At this rate, that’s not Tesla either.
Regarding the Roadster being "niche", it still looked like a normal car at least, unlike the EV 1, and any other electric car at the time. Furthermore, they had a roadmap to more affordable cars that still fit the moniker "normal". Other car companies were just running their EV projects as experiments, or as a way to appease California legislators to meet quotas, or simply retrofitting a non electric frame with batteries in a way that left much to be desired.
No one was trying to make a non-toy full electric car until Tesla.
> No one was trying to make a non-toy full electric car until Tesla.
The Roadster was a toy, costing over $100,000 and selling approximately 2,500 vehicles, in the same ballpark as the EV1. The idea that it spurred GM and Nissan to build completely different EVs for the opposite end of the market is delusional. The timing also doesn’t work. It took Tesla several years to bring the Roadster to the prototype stage. Counting back a similar length of time from when the Volt was unveiled as a concept car, that means GM would’ve been working on it since 2004 or so, years before the Roadster came out.
The frank truth is that both the better design and range of Tesla vehicles set the stage for electric cars to be adopted by everyone rather than just special interest groups.
You can be assured that every manufacturer in the world, such as BMW, is building up electric manufacturing capability due to the success of Tesla, and not Nissan.