If you are truly looking for a 4 season RV, this is not it. The Dynamax has a package that gets a little closer with their wilderness addition with more insulation, additional wet bay heaters and dual pane windows. The Omni/Magnitude has none of those and that would be the bare minimum for cold weather.
Plus, I was drawn in by the 4x4 on the side, and after driving it across the country in back, I don't think the 4x4 gets you much. The RV will weigh in at over 18k lbs, the tires will be lucky to get traction in ice/snow so 4x4 really doesn't do much as you would want to chain up in any conditions that is not just a light dusting. Would it do a good job getting you out of a wet grassy field, absolutely. Would I depend on the 4x4 to get me through snow / ice. Never without a good set of chains (or maybe all new tires specifically for off-road + snow).
Eric
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