What happens if I can't pay my car loan?

As cars are built with more and more electrical components, I wonder what the cost of repairs is like. How much does it cost to diagnose an electrical issue in a car?

I’m thinking of getting a Rogue but I’m not sure which trim to get. Towing capacity is important to me since I plan to also get a camper. How much can a Nissan Rogue tow?

I live in California and am currently shopping for my first car. I tend to prefer cars with darker paint, but my family is telling me to avoid buying a dark-colored car, since they say it could increase my chance of getting into an accident. I've never heard this before, and I'm inclined to believe it's just a myth—but on the off chance it's not, should I be worried about the color of my car?