Mapping systems. Imaging systems. Automation systems. Safety systems. Communication systems. Energy management. Suspension. Energy systems (electrical I presu

Mapping systems. Imaging systems. Automation systems. Safety systems. Communication systems. Energy management. Suspension. Energy systems (electrical I presume). And that doesn’t include all the manufacturing process people that Apple would throw at a problem of any scale, let alone cars. So yeah, there could be a tons of people, but like most Apple things, very, very few would have access to anything more than a small slice of what is going on.