Why won’t my 2019 Nissan Sentra start?

I bought a BMW a few years ago thinking I was going to keep it for a really long time, so I bought an extended warranty. I’ve recently decided I want a new car, though, so is there a way to cancel my BMW’s extended warranty?

I’ve read and heard that Colorado is an absolutely breathtaking state. I want to visit, so I’m going to fly to Denver and rent a car. My only problem is that I’m not sure if I’ll be able to rent a car because I’m only 23 years old. In Colorado, how old do you need to be to rent a car?

Will I still be able to get a car loan if I have a credit score of 568? I’m not really sure what’s a good credit score versus what’s a bad credit score, so I don’t know what to expect.