I went out with 5 other couples on a 50 mile trail ride last saturday. The wife and I have a 4 year old bombardier traxtor. It is 650cc and the 1st to build a legal tandom ATV at the time. It is powerfull and hasnt let us down. (Once temporary, when I got the drive belt wet).
Anyway 3 couples had the 800 RZR`s, one had a polaris 500 and the other had a Kabota Diesel of some type. The Kabota Diesal couldnt go over 20 MPH or so. Fine otherwise. The 500 tandom polaris seems good, I have been an 6 or 7 rides with that couple. The RZRs are fast, they claim they will do 55MPH. Except on good gravel roads, most our rideing on trails probley is 5 to 10 mph anyway. 2 weeks ago I went about 6 miles out of about 30 on a unbeliveable steep narrow rocky trail that I dont hardly belive I could have walked on, and that was over 10,000 to almost 11,000 feet altitude. I shouldnt have done it as my wife has a bad back to start with and has been suffering since. Sometimes if you havent rode certain areas before you put yourself in a spot where you have no option but to continue on, where had you known what is up ahead you might not have tried it! Anyway we live in the mountains in utah that is known as probley the most challanging trails anyway. All the 6 machines did well, and all of us are senior citizens.
The 800 RZRs are fine machines, but wife and I are huge. I sat in one and found it "tight". Personaly, on a regular machine if in trouble I belive I could bail off, on those side by sides you are strapped in although they have a cage, I belive it would be possible to roll them over a 1,000 feet on some trails I have been on. We havent tipped one yet, and I hope not to!
The wife and I after that long dusty ride. Honest, she really aint Aunt Jamina!