Dbart nailed it!
Comparing a true sand car to a UTV is not a fair comparison. The “Sand Car” is a specialty vehicle designed for one location. Sand! So if your only destination is Sand, and you want the best performance in the “Sand”, then a “Sand Car” is the best option. But it’s going to cost you too!
How many real sand cars go to Ocotillo Wells, Barstow, Johnson Valley (KOTH) or Baja? The answer is None! That’s not what they were built for. A SXS will out perform a Funco in Johnson Valley.
Each environment can allow for a specific vehicle. Like Punchdrunk Monkey talked about his Alumicraft that was built as a purpose built Prerunner. It’s a buggy but it was not designed as a Sand Buggy. It was able to dune, but not like a purpose built Alumicraft sand car would. Just like a SXS can dune, but not like a purpose built Sand Car.
What the SXS does, is everything well in dozens of environments. It’s not Great at just one, but does dozens of places well. It’s very universal, and with specialty mods, can be more purpose built for Sand, Mountain trails, Baja built or Rock Crawler built.
Also it matters what the crowd you ride with has. If your group has Jeeps, then that’s what you will want to enjoy the same adventure. Your not going to bring a Funco to a Jeep run. I used to run my Prerunner buggy (VW engine) with SXS out at Plaster City/Superstition. While I was faster on the flats, I could not run the sand dunes as well and had to bypass some stuff or take an alternate line. Once we got a SXS our fun level went up 100% because we were running with SXS’s. Also the maintenance was dramatically reduced when we moved to a SXS.
And lastly the current field of SXS’s is not like your Dad’s SXS. You need to get past the days and thoughts of Rhino’s. Once you do and admit the current SXS is a true performance off road vehicle. You will see the SXS has greatly narrowed the performance gap between the Sand Buggy and SXS and might be more accepted to you. Also if you look outside the Sand Box and explore other areas, you will see the advantage the SXS has over all other vehicles.