We’re glad to see diesels making such a strong comeback in the United States. After a couple diesels in the ’80s (which shall remain nameless) soured our country on the whole idea of high-compression-and-no-spark-plug powerplants, it took years for our country to catch up to what the rest of the world figured out years ago: Diesel engines are considerably more efficient than gasoline ones, and we can use that to our advantage. In the next few years you’ll see diesels in many popular vehicles that only offer gassers right now. And we’re guessing that eventually diesels will be the majority powerplant in passenger vehicles you drive every day. So this buyer’s guide is devoted to all you ahead-of-the-game diesel drivers.