Maybe the real problem is just that it would add too much to the price of the car?
Yes. GPU/​ASICs in a car will have to sit idle almost all the time, so the costs of running a big model on it will be much higher than in the cloud.
Yes. GPU/​ASICs in a car will have to sit idle almost all the time, so the costs of running a big model on it will be much higher than in the cloud.