Most cars today come with warranties that cover the engine and transmission -- in other words, the stuff you're really worried about -- for five or five to 10 years while covering everything else on the car for about three years.
If someone tries to sell you an "extended warranty" keep in mind that the parts you really care about, the expensive parts that make the car go, are already covered for a long time. In fact, there's a good chance you won't even have the car longer than that.
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