All the deck lids are the same across the brands as they are one of the areas not open for brand changes. They are available from a NASCAR supplier while the hoods come from the brand OEMs. As new cars were being built in late 2012 and even before Daytona 2013, there was a shortage of deck lids for building and testing cars. That should have been relieved by the time you read this but maybe not as the carnage on the new cars has been higher than usual.
As far as the rest of the body, the OEMs used to supply steel stampings for the hoods, roofs, deck lids and A, B and C posts/pillars. The teams then made the sides from sheet metal with flat openings for the wheels. With the new rules that came with the COT, the bodies have become more precise (NASCAR is developing a laser inspection rig as we write this.) and that means the panels and pieces need to be as well. The new bodies have a lot more styling cues on the sides and now, they are using very pronounced wheel well flarings. All body pieces are new stampings that come from the brands made from 24 gauge.0.0247 minimum cold rolled steel. What’s really surprising is the number of pieces that now come from the OEMs.
