I am 6-4, (or used to be) and in a Teryx. I have had major back surgery with lots of aftermarket parts so I had to get out of my hillshooter rail.
The longtravel sand cars were on my mind, but I have too may other hot-rod toys to afford a full on LT car, so we bought the 'Rex.
The first thing I had to do as move the gas pedal, it was cramping me like crazy. It is now over almost touching the driveline tunnel.
Then new seats with lowered bases.
I sat in a RZR S and it felt tight to me.
I like the Teryx, but it has taken some time to get used to the difference between 630 HP and less than 75.
I am working on it.