Oh Ford. How can you possibly build a light-duty truck that gets worse gas mileage than the Hummer H2? Well, that’s precisely the case for the 2010 Ford F-250 Lariat which was recently credited by Consumer Reports for getting the worst mileage of all 2010 vehicles with a shocking 10 mpg in real world tests.

That’s right, 10 miles per gallon. Amazingly, it seems like the Ford F-250 Lariat engine is operating like an ancient dinosaur. Sure, you’re getting plenty of power, but at what cost? With current gas prizes and regular driving, it won’t take long for a Ford F-250 owner to have paid for the vehicle twice, not to mention the amount of greenhouse gases they will have pumped into the air.

The most fuel efficient vehicles in CR’s real world tests were the Toyota Prius at 44 mpg, the Smart Fortwo at 39 mpg and the Honda Insight EX at 38 mpg.