No one's talkin about a hot rod, but a capable vehicle. Sure the little engine gets a (claimed) 30 mpg, that has yet to be proven. Very few vehicles ever get the epa mileage they claim, in my experience. The torque numbers are good, but with 220hp it's going to be a slow accelerator, and while some may surely jump on this one, I can guarantee you, it won't be long before folks start pushing the factories for higher numbers. No one likes to drive a truck that is pitifully slow when getting on the freeway, much less, when towing. I can bet you money, that those same gas trucks (many of the 1/2 ton gassers are OVER 400lbs torque, by the way) will out pull, out accelerate, and just flat out perform that little engine. Plus as hard as they are pushing that engine, they will probably last just as long.
Guys around here that have the diesel trucks, have to swap fuel filters at least once a year to keep from getting them clogged. I have never had to change a fuel filter on a gas engine. I've done it, but never had to.
As for the claimed 30 mpg, if it gets that, given the local price difference of fuel, $4,21 87 octane vs $4.75 #2 Diesel, and driving 10,000 miles a year, I see about $755 difference a year, in the favor of the diesel. That is compared to a gas truck getting 18 mpg, and many are making higher claims than that. The Ford Eco-Boost claims 22, with a 10,300lb tow rating, about 380hp and over 400lbs torque from a 3.5L V6.
When all these things are factored against it, I think the 220 hp numbers are just too low, for todays market. Sure 10 years ago, that's what some engines got, but everything else has advanced, it's time they did too.
Now, factor in the extra cost of the diesel package, $8000 the last time I checked, the extra oil costs, filters, and it take a LONG time to make it worth it. The the package cost alone, makes it over 10 years to pay off the difference, using the 10,000 mile a year figure.