Often times it's the people you visit after you've decided on purchasing the car that provides the most profit to the dealer. The financing person has to tell you about all the things that can go wrong in the car. The electronics alone will pay for the extended warranty. And don't forget about the undercoating, rustproofing, paint protectant, fabric protectant and radio anti-static guard (just kidding about that last one).

When I was purchasing my 1997 Explorer they kept pushing the extended warranty after I had one of the best experiences ever during the sales process. I finally told them that if I needed it that badly I should probably be looking at a different vehicle. That shut them up. BTW, it now has 155,000 miles on it. The only thing that I've had to replace that isn't wear and tear was an alternator that went under the factory warranty. So I never would have used the extended one.