How do I get cheap insurance as a 21-year-old?

I’m looking to buy a 2011 Chevrolet Malibu. It’s cheap because it’s having some transmission issues, but I’m afraid I’ll have to spend a fortune to replace the transmission. How much will a replacement transmission cost?

I need to replace the windshield on my Saturn Vue. I hit a rock on the highway and now there’s a big crack. Do you know how much it will cost to replace my Saturn Vue’s windshield?

I picked a black car because I like the color, and I usually wear black because it’s harder to tell if I spilled something on my clothes. But apparently, that rule doesn’t apply to cars. You can see dust, dirt, and mud on it so much easier than most other colors. What’s the easiest way to keep a black car clean?