When I worked in the auto industry the Ford auditor we worked with said labour was the highest cost in production. Materials were on the low end of the scale.
However its now also the amount of bullshit they piled into the car now. Like rear entertainment and separate climate controls, all the electronics for everything, all the add on a etc.
I rented a car a while back on a business trip, they had no small cars left so gave me a Mercedes. Led lighting across the dash, and across the door panel. And you could alter the colour values to suit the colour you wanted. Why, why do we need garbage light strip accent? It wasn't the light for ease of exit that shines on the ground, just rgb rainbow vomit