The away team calls the ship and speaks with Skrath. He describes his brother as being 1.6m tall and weighing 47kg. You realize that this could describe about a million different Rogues. You ask him if there are any more distinguishing features - scars or anything like that.
He pauses, then says his brother doesn't have any scars, but that he does look quite a bit heavier than he really is, heavier, in fact, than any rogue should look. In any case, his name is Kerthk and if you tell him you're with Skrath, he'll trust you.
You look back at the Rogue in the truck and realize that none of them look any heavier than your average Rogue, so there's a slim chance that Kerthk is one of them.
To answer your question about the truck, it doesn't use pedals. All motion is controlled by a steering console that can be programmed to just drive forward, navigate itself along known paths or even steer itself to avoid obstacles.