I’m shopping for a Razor. I’m finding I need to know more about them and hoping this is the place to learn what all the initials stand for that are listed with some Rzr’s.

I’m guessing the sizes are more than just a horsepower difference. I’d like to know the types of trannys w/ advantages of each, payload and speed for each model etc etc.
If this info is already posted please point me there. TIA