I think it heavily depends on the make. Both my families mustang and f150 were terrible to repair. But my camry by comparison is a joy. I can tear it apart almost the whole way with a 10 and 12 mm in an afternoon.

I've done work in soft manufacturing, so i know how to use a wrench, but never worked in cars.

I acknowledge bikes are way easier BTW, can fix almost any problem in my bike in a few hours, just think repairability should be on people's minds.