Interestingly enough, however, there's actually another Chevrolet muscle car that's nearly as rare as that option package. Though not a manufacturer production car, the Callaway SuperNatural C8 ...

Through a combination of nostalgia for the muscle car era and the undeniable appeal of Dean Winchester's car on "Supernatural," the '67 Impala is becoming a coveted collector's item that can fetch ...

And in the new season, Ackles, 46, drives the car throughout the second episode. As Supernatural fans well know, that handsome muscle car wasn't used by accident. Ackles' character, Dean ...