MPC had this little trick when it came to licensed models, they'd take an existing kit, add figures of the characters and release it as a waifer thin tie-in to the show. In this case, you get a kit of a car that I guess the Sweathogs like. You also get tiny figurines that you can place around the car to create a scene of them, looking at a parked car....
They also did this with Fonzie but it wasn't as bad because:
a) He's a mechanic
b) for that one MPC rereleased the "Monkee Mobile", an actual car from a sitcom.