I was surprised at the difference in the body dimensions between the now aging AMT 71 Duster and the recent issue AMT 72 Duster (the newer kit body is 1/4 inch shorter). After all they are basically the same car. I wish I had the new 65 Barracuda when I built the 63 Valiant resin kit, and when cobbled together a stock 66 Barracuda and the 66 Valiant pickup from HUG kits. All I had then was the Fireball 500 so I made do with that.