Read the actual contract, not the sales brochure, to fully understand what is and is not covered and how warranty claims will be processed. After doing that, I doubt you would even consider a "warranty."
The dealer will put a lot of pressure on you to buy the "warranty" because they make tons of money from the sale, probably more than on the sale of the vehicle.
The only "warranty" purchase you should consider is on from the vehicle manufacturer. Aftermarket "warranties" are usually a very poor value.
The best money you can spend is getting a pre-purchase inspection from a qualified technician.
