>Isnt this rating more about supporting and breaking force for the combined vehicle and load weight.
There are braking requirements in the test but the bottleneck is almost always (i.e. I want to say always but I don't put it past Dodge to show up with a 700hp vehicle) the acceleration and minimum speed up a grade portions of the test. Given the weight that can be accelerated and pulled up a grade per the test requirements basically every vehicle winds up passing the braking portion with room to spare.
But if you get all your vehicle performance advice on Reddit and HN I can see why you'd think brakes are always the bottleneck.
Isnt this rating more about supporting and breaking force for the combined vehicle and load weight.
My understanding in this case tow means 'pull the vehicle' vs carry the front weight. So I think even a smaller car would be fine to pull a Tesla.