My car needs new tires. The front brakes were recently replaced but now I need at least two tires. I can't believe tires are so expensive. It's not like they are gold-plated or anything. And can anyone tell me what a 5th wheel warranty is? That sounds like there's a warranty on your spare tire? I'm not sure why you would want that. I suppose if you bought a brand new tire as a spare then you never had to use it....I'm not sure what the warranty would do. At what point would it kick in? I don't think I'd ever purposely buy a spare tire anyway. I'd replace the tires on my car and use one of the 'good' tires as a spare.