Waymo is solving this for a handful of specific models, they would need to do significant work to adapt their system to say a 2010 Corolla let alone more exotic stuff.

It’s not just physical instillation their models would have to be adapted for different camera placement, vehicle weight, etc.

But not to the point where they are selling kits. They retrofit a specific vehicle for use in their service.

I think CommaAI is the closest to a kit, but it probably will never quite reach "no-human-required" autonomous driving; I don't think they're even aiming for that.

https://github.com/commaai/openpilot/blob/master/docs/CARS.m...