Don't buy a new car to get better gas mileage

What freaking idiot did this study??? I remember when Jay, I believe it was him, showed Sedelmier101 the exact same thing when he was thinking of trading in his truck to save money. If you need a new car, ie you’re car gets totaled, engine blows up, and it is a gas guzzler, then yes get a car that is better on gas. But buying a new car to get a few more mpg’s, dumb.