Which was kind of my point. I would love if there was some sort of a safety rating that was cross-comparable across all vehicles, not just within the same categ

Which was kind of my point. I would love if there was some sort of a safety rating that was cross-comparable across all vehicles, not just within the same category/type. I wouldn’t want it to be replacing the per-category one, as that one is way more precise and accurate. But there should be a way to roughly compare the safety of two different cars of different classes. Given the NHTSA rating notation you posted mentioning normalization by size and weight, I wonder if there is a rough function of weight and size that would allow for “denormalizing” scores into raw approximates.