Other things to consider about warranties:
A frequent sales tactic I've seen used, involves making you worry about your purchase. Supposedly, you've purchased a good, high quality vehicle, but if something goes wrong... "it's going to be VERY expensive!. Better cover yourself with a warranty!". Makes you wonder if you made a mistake buying the car! Anyway, it introduces a degree of uncertainty in the customer's mind, which is not good.
The salesperson or dealership typically gets a 50% commission on the sale! That means the warranty service company can still make a profit with just half of what you paid! Must be a pretty good business!
Other issues:
1) You might sell the car sometime before the warranty ends (may or may not be transferable, but you are unlikely to recapture your investment in the warranty)
2) It could be stolen or wrecked before the warranty ends.
3) Something could happen whereby the warranty is voided.
4) Many warranties require you to do various types of servicing on
*their* schedule and often at
*authorized* service centers.
5) Then there is the usual disputes that crop up as whether or not something is actually covered, when you need it the most. Read the fine print!
All in all, not a good deal in most circumstances. They usually come out on top. There are a few cases, where it might be worth considering, but not many.