it's a lot like that old early 1970's MPC NASCAR chassis and interior that was used in all of their NASCAR kits. I have built about 15-20 stock cars using that generic MPC chassis and interior with different MOPAR and Ford bodies and they look just fine for me. I have a question. Do all of the Salvinos Jr NASCAR MOPAR kits have the same chassis and interior in each one? Or are they different according to whether your building say a 1971 roadrunner or a 1974 Charger? Do all of the MOPARS share the same chassis and interior? The same for GM. Do all of the GM NASCAR kits share the same chassis' and interiors too? If so, I'd like to buy more Salvinos Jr kits to put different bodies on.