What you're looking at is a deeply speculative render from X-Tomi of what the new Dodge Durango SRT could look like with a pickup bed at the back. Well, especially in SRT spec, it might be putting the proverbial cart before of the horse. So let's turn things around a second here.

Though it's now larger and based on a crossover-like unibody construction, the Durango was originally based on the Dakota pickup. 

It wouldn't be entirely out of the question as crossover-like unibody sport-utility trucks are becoming a thing. Just look at what Honda has done with the Ridgeline, or what Hyundai is preparing to do with the Santa Cruz concept. They're essentially crossovers with open beds instead of enclosed wagons