I have the 570 RZR. While I chose to go the SXS route I can comment on the engine. It is quick and nimble. The low end is great. I would assume the quad has the same or similar prostar transmission/cvt. I have not had any problems carrying the weight of the RZR, 300# of people (my son and I), as well as towing at goose hunting trailer that weights perhaps 6-700#. Of course we pull it in low range. I was actually thinking the other day the the next quad I get will be the Polaris 570. I love it that much (as well as the ease of filter/maintenance of the same engine on both). For the fun side it has no problem carrying us across the hayfield at 40-58 (rev limiter) We rarely go above 35 as that feels like flying.