I'd rather have my beater Jeep than my F250 when the trail gets too tight like that.
Problem with a tight trail like that, that a fullsize or Tahoe can allmost fit down, is that it's extremely boring and lame in a Jeep. Jeeps are so good at what they do that it's really no fun at all. The only way I can still have fun is by turning up the speed (motorcycle) or turning up the challenge (backpack, mountain bike) Chances are I'll never own another Jeep ever again unless I age bad and can't enjoy the outdoors on foot or bike anymore. I wouldn't mind building a rock buggy out of my old Jeep parts.
Quick question. Deos that trail actually go anywhere?, or is it just some goofy road for playthings that goes nowhere? Usually a road/trail that actually goes somewhere worth going to, is generally about wide enough for a fullsize. IE It goes to a campsite, park, trailhead, etc. etc. Yeah, roads that go nowhere are going to be tight, if I'm after a watering hole, stealth campsite, etc., I just ditch my F250 as deep as I can get it to while still finding a spot that deosn't block anyone else, and walk or unload my CRF450r or mountain bike(s). There is a big difference between traveling offroad with a purpose, and just playing around trying to entertain yourself. Obviously a dirtbike or Jeep is going to be better at playtime.
On te other hand, an ugly rust bucket fullsize can fit down tight trails fine since you don't mind pinstriping..... Shiny, waxed up rides, really don't make the best hardcore wheelers no mater which one you pick.
For the most part, I can fit my F250 anywhere worth going to in my area. You have to decide for yourself where you're going and why, then pick the proper vehicle.