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...you're an idiot. You bought a NEW vehicle, never mind what kind. There are loads of pre-owned (used) vehicles in every category, every price range, that don't require the huge utilization of ever-scarcer resources to produce, the total of which makes gas mileage insignificant. And the pre-owned dealers are just as eager to deal as the new vehicle dealer.
That said, you're also an idiot for buying a third-tier brand like a Mitisubshi. (Which also has a much less than swell reputation for mechanical dependability, and a staggering repair cost for virtually any repaired component.)
It is my sincere hope that this new toy--and that's EXACTLY what it is, chum, a toy, and you're kidding no one) pukes up a timing chain while it's hauling you and your family back from a sunburned, need-to-pee, cranky, hungry and crabby trip to Family Funland on a steamy Sunday afternoon. You'll then get to discover the joys of trying to replace a part on this oddball Stupid Ugly Vehicle. Dolt. Dumbell. Twit.