I am looking at a 1972 Duster Twister to purchase. I am not how to determine if the car is a true Twister of a Duster with Twister decals. From my research a Twister has the 340 package with a 318 engine. The car I'm looking at has a bench seat; I thought the Twisters only came with bucket seats. The hood does have the dual scoop but does not have the stripes down the middle; the hood is black and the scoops are the same color as the car. Do all Twisters have the sway bar and racing mirrors? What type of instrument panel should be in the car? I would appreciate any help!