I don't think Apple will ever build a car - seriously, why would they?
- It's always reliant on external manufacturers (even Tesla doesn't make all their components)
- They're not going to make anything better than existing manufacturers
- It risks damaging their brand, rather than enhancing it.
- The future of personal transportation isn't the car, nor is it the self-driving car no matter how excited all the fanbois carry on about it. Even Tesla's system is a LONG way from true automation. That's a very American, and foolish, attitude.
(build better public transport, safer cycleways and build your neighbourhoods so you don't NEED a car for everything)
I think its' FAR more likely that Apple is looking at helping existing manufacturers with technology to improve safety... but even then, why would they want to be 'invisible'?
I think all these talks with manufacturers is about adding tech into cars that can be interfaced with Apple hardware (ie. electronic key integration, CarPlay (especially wireless)... and all sorts of future tech (FaceID, LiDAR, AI, Siri integration, etc).
I would bet my house that Apple will never make a whole Apple-branded car, and people need to stop smoking whatever they're smoking and get back to reality.