Motor Trend did something like that back in 08 or 09. It just wasn't for max weight. They tested each of the 1/4 ton trucks available. I think they pulled 3500 lbs each. Tested: 0-60 time, 35-70 time, 70-0 time with notes on stability while doing it. I think they also tested stability at highway speed over different road types. They tested everything on flat roads and inclines, plus measured trans temp, break wear and mpg over the whole test.