I like the idea of an inline for less frontal area.
Having a lot of experience with a Haulmark race car trailer that was ordered to be a dual purpose race car trailer/ sled hauler, I think that an inline would tow a lot better.
Granted this haulmark was a v nose, drive on/ off, steel frame for race car use instead of the aluminum that typical sled trailers can use, but it towed very hard. A half ton 4x4 4.6 f150 got like 6 mpg towing it. The diesel dually 350 did tow it better, but it still was a lot more work than a 4 place sled trailer should take.
I agree with Ding, if you are getting passed by semi's, then you don't drive like we do
That may have accounted for the 6mpg in the f150. I towed the same trailer once with my Mom's 99 grand cherokee 4.7l v8, and it towed better than the f150, so I don't think that towing a 4 place with a durango (as long as it is a v8 ) is out of line.
Now when I see a 4 place flow enclosed being towed by a Chevy equinox like last weekend then you are asking for trouble.
Ding, that must have scared the hell out of you! I had a semi nearly rear end me a few weeks back, then he tried to cut ME off later, thinking I was in the wrong. I don't know what his problem was, but I floored it to get 20 cars ahead of that idiot as soon as I could. Glad you made it through with apparently no damage or issues.....That could have gone really wrong really fast.