One thing that was rough about the Bike Lexington Family Fun Ride was the length of my rig. Lots of people commented on the extra weight with three kids. That wasn't the problem at all. With 2,500 cyclists in attendance, my problem was navigating this thing through the crowd.
I've never measured the xtracycle plus trailer length. As you can see, it's only a couple feet shy of the Subaru, though. I didn't have many options when weaving and dodging my way through the crowd. I had to stick to one side or the other. Overall, though, I'm blown away of how easily it is to transport them all. It's not bad.
Get out there.