The contracts come from some shady central house that both knows how to write them so the dealer can welch out of paying, and also tells them how to market such items. Dealers go to dealer trade shows for new stuff, they only have to reinvent their cons every 5-10 years as that's how often people come in. Read the back pages of "Automotive News" for the wholesale come-ons. They still have those stupid keys you get in the mail that "might fit a new dodge viper".
Look for the warranty to only cover "lubricated parts" which would leave you in the lurch if there's a wiring issue, most computer codes, EVAP issues, entertainment center, rust issues, etc.
Honestly look at how your current car is falling apart and expect the next one to perform similarly.