Roadrunner or Not

Hope the OP isn't swinging from a tree.

If you paid to much then go back to the guys who sold it and see if he will renegotiate. If not then lawyer up or tuck your tail and move on.

There are worse things in life than buying a hot rod that's not exactly what it was supposed to be. If you keep it then just drive it and don't get hung up on labels.

Take the stickers off and call it a MOPAR or a Plymouth B Body or whatever. It's still a nice hot rod and if you don't care nobody else will either.

Yeah its not a matter of caring if it's a RoadRunner or a clone. Without a VIN, any traffic stop could result in the car being impounded.

EVERY car manufactured since 1968 must have a dash VIN per federal law. You shouldn't even drive that thing, any stop by the cops could/ probably would result in their seizing the car. You have a parts car at best, stolen property at worst. The title doesn't mean squat.

Exactly. Well, at least about the car being impounded. Any traffic stop could result in an impound. In fact, it doesn't even need to be a traffic stop. Even a parking ticket could cause an impound. Maybe not in every single case, but it's definitely a strong possibility.

As far as it being a parts car only, it depends on the state. There are legal ways to get it a new VIN for it. But, in this particular case, the fact that it's a '68 is going to make it a problem because the stamped numbers remaining on the car aren't the VIN. If the title only has the VIN, and the car doesn't, yikes. If the other serial # is on the title, ie, the numbers that match the car, then there's a way forward. But if the title only has the VIN listed, it could get really ugly. A lot of supporting documentation will be needed to get some kind of VIN reissued in that case, and that will be dependent on where its at and the specific laws there. And if its like the DMV here, it may come down to the individual person at the counter that day. I've had three identical title situations end three completely different ways. Since the law and regulations regarding the situations were the same, the only reason each situation ended differently is the person at the desk that day. And that's scary, especially if a lot of money changed hands.