One other thing you have to be careful about is extended warranties. They may be a good deal and they may not. Quite often the coverage offered by the warranty is very difficult to qualify for.
I just bought a nearly new motorcycle and they offered me a 4 year extension to the 1 year factory warranty for $700. I paid $8700 for the bike. I typically don’t go for extended warranties, and I was most certainly not going to agree to it the minute they offered it. I’ll look over the coverage and see if it makes sense, but for someone that can do routine maintenance themselves or plan to make any modification to the vehicle, extended warranties are often more trouble than they are worth.