It looks like a new car, maybe its got that new car smell

The first dead giveaway is the front ride hight and it appears to be light as if the engine was removed. The second giveaway is the quality of grill (looked coated or nice seasoning on it) he was using.

In all honesty this could easily be obtained with a gas grill setup but would have to take in account for venting.

The moral of the story is that when they pulled over to help what appears to be a broke down vehicle, they are pleasantly rewarded with food off a grill.

Now imagine being one of those that flew by and then it hits you a 1/2 mile down the road that what you are smelling in the cabin is grilled grilled meat and that broke ass car you just blew past was a damn grill. It was at that moment you realized you done fucked up.