Putting "Tesla" in the name seems like you're trying to use the carmaker's brand to bolster your own brand. Kind of shady.
It's a simple misconception to correct, though.
What if I used "Turing" as the name of my cybersecurity/AI company?
Even still, two wrongs don't make a right.
In any case, it should be impossible to trademark a name like "Tesla", because it is a common term in electrical engineering and transportation (Tesla wasn't the first company making electric cars).
Only if the car was (somehow) powered via alternating current (bonus points if via wireless energy transfer, for obvious reasons).
I'm actually not sure what the motor tech in the Tesla vehicles are; likely some kind of 3-phase BLDC (or maybe synchronous AC).
So I guess in a way, it is "AC" at some point in the powertrain.
:)