I do wonder about that. The "official" spec is what - 279ft-lbs? Given that this is deriving some of these measures, and that reading was early in the "learning" period, it was probably derived in error.

I still have to catch a scale open so I can weight the car to get the actual weight for my car as built. Until then I am using the factory weight, which means some of the other calcs could be a little bit off.