Spent all last winter in Baja, first helping a team pre-run for the 1000, then seeing a lot of the areas around Mulege, Loreto, Mag Bay and north of La Paz that few get to. Were several times we found ourselves driving on the pavement after dark, especially during pre-running, to get back to our base.
I know most roads are wider in the US, but if you ever spend a bit of time on a narrow, unlighted, two lane highway with semis passing within inches of you, do realize your headlights are mounted quite a bit inboard of the side of your SXS and that a 1500 pound SXS is not going to do well in a head-on, even against a small car (they weigh 3000+ pounds nowadays!). It appears to oncoming traffic that they have and extra 12-18 inches of space, which they do not!
Not saying reflectors are needed for every situation, but I immediately applied DOT reflector tape to the inside rear of the front driver's fender, the outside of the driver's rear fender, and the driver's rear view mirror.
Then I only had the Trophy Truck pre-runners, cows, federales, jumping cacti and chupacabras to worry about!