They could have a better driving assistance package than 99% of other cars on the road for 1/10 the price by using OpenPilot as the LKAS, or installing a Comma in the car.
Real shame nobody has taken that approach, not even a fork
I recently ordered a Comma Four, which I will install BluePilot on and use with my Lightning. I'm looking forward to seeing how competent it is. Gets good reviews, at least, so I'm hoping.
I do wonder if there will be many more iterations, though, with so many manufacturers switching over to an encrypted canbus and locking out the control method comma uses.
Aptera has: https://aptera.us/openpilot-release
Comma had made essentially no efforts to meet the requirements of automotive systems the last time I looked at them. They would be an incredibly risky supplier for systems that could easily come under regulatory scrutiny.