To give credit where credit is due:
Tesla was the first to make cool-ish electric cars, before Tesla other brands’ electric cars were even more dishwashers on wheels than Teslas are. They made them fast (for no real reason) and pleasing to look at. They marketed them to people wearing sandals and clothes made of straw at a semi-reasonable price. Now others have caught up both in terms of design, power, and much improved quality.
They rethought the interiors and overall distribution of spacing, partly because they were not bound by decades-old designs firmly baked in the production line. This is critically important as redesigning structural components of a car and modifying the production process to fit them is extremely hard, so exiting car manufacturers had this drawback while Tesla could start from scratch.
They built the charging infrastructure and can profit from it - I actually think that’s where Tesla’s money will come from.
Elon seem to have gotten bored of Tesla, now he’s on to other things like the US public sector, when that gets boring/exhausted he’ll pick up something else to play with. Maybe space, maybe neuralink, maybe time travel, maybe cloning, maybe robots, maybe My Little Pony, who knows. But he’s clearly bored with Tesla and it shows in their aged line up.
Investment-irrelevant.
Edit: I may personally avoid electric cars but I love them being around, means more dinosaur fat will be available for my motorcycles 
Edit 2: in many ways the ICE car was “solved” somewhere around 2000, a golden mean between efficiency, safety, reliability and performance was reached.
As a petrolhead I can see how cars got more and more streamlined since then. Now we have multiple brands under big roofs (eg the VW group) making essentially the exact same car with a different badge and slightly modified external shells.
Electric cars, hybrids, hydrogen still have ways to go but they’ve gotten to a point of reaching some consistency and benefits starting to be incremental.
Thankfully motorcycles are ~20 years behind ICE cars in terms of being “solved”, but I see the warning signs of streamlining and consistency. Now we’ve firmly reached a point where standard motorcycles have a lot more “skill” than the average/chill rider like me right off the production line, which allows for great performance with a ton more safety. Petroheads/bikers sound warning bells that modern bikes have become borderline too powerful with way too many safety features which, if they fail, can actually turn dangerous if the rider doesn’t know how to react. Still, thankfully the widowmakers of the 70s and 80s are gone.
Motorcycles are inherently immune to total loss of character because they will always require a minimum level of skill to operate safely, unlike where cars are going.
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