If it were anything other than a Toyota/Lexus, I might think about it, but these vehicles are pretty bullet proof. Not saying that something could happen, it's just not likely. As PirateMcGee stated, with such an unlikely possibility of anything going wrong, putting money aside, if (big if) something were to happen, you'd be better off digging into your "insurance" saving account to pay for it than paying for an aftermarket warranty. But that's just my opinion and as I like to say, "Opinions are like bellybuttons, everyone has one."