I put it in the back of my F250. Before that, I tied it (tires down) to the roof of the Taurus POS stationwagon we had. I haven't tried to stick it in my Honda Fit yet, but it's calling to me from the tarp I've got it wrapped in. I'll let you know how that goes. I need to get it out & ride it or sell it. I haven't touched in 18 months (too much fun with my CAAD9) Width is not typically an issue. It's not...exactly...doubletrack, but paved MUP's shouldn't be a problem at all. Two trikes riding side by side or passing one another gets a little close, but they steer remarkably straight so it's usually not a problem. If you get a tadpole config, warn your dad not to ride like a hooligan. You get a good head of steam going and yank the controls to one side and you *will* be up on two wheels. Ask me how I know. Also, if in that good head of steam he grabs both brakes real hard he will discover the 'ejector seat' feature most tadpoles are equipped with.