It truly is a laughing matter about HP, towing on mountains etc, WOW!, Am guessing since I am a basic hot rod type is why I went looking for something that would get up & go, after many months of snooping, reading all the engine specs etc, I wound up with a Foretrael 36, 1 slide, ISM500 @ 1550 ftlb and weight at 30,000 half water and fuel. Not a full timer, so not carrying all the normal junk.
Point is the getup is 0-60 mph in 18 seconds, while not a tire spinning smoking rubber, it is very pleasing.
This is not my first RV so had some thoughts over the years leading up to this unit.
Pass all RV/Bus types on mountain including all but one truck who was very surprised. He was empty, running a 600 hp Cummins, so his weight to hp was a tad better than mine, we both had a laugh.
The numbers are what count, my numbers are 60lb/hp and 18lb/ftlb.
Dave M