Zogg, We have a 2012 21RR and it does everything we would expect. We haul a Ez-go Workhorse (formerly a grounds keepers golf cart) that's been tweaked to run with the Rhino's and Rangers. It's got a 670 cc motor and custom suspension.
I had to cut 1" out of the cage to make it an easier fit into the hauler. It weighs in at about 1100 lbs and is a relatively tight fit in the 21RR.
I know that the 2013 and forward have a bigger door and opening but you should still check your overall dimensions.
Bottom line, I think the 21RR is the perfect solution for us (just my wife and I, no kids).
And of course, I'll jump on any opportunity to post a pic of the cart