Yes, of course its a tow dolly.
Borrowed from a freind, I'm testing it as a dry run for the Rocket City Ramble :
RCR thread
We will have this rig for all the runs, tours, whatever the entire time and I wanted to be sure clearances werre OK, and also just make sure I could make it work right. Our dry run became a wet run, but that probably makes for a better testing environment.
Did not actually take it out of the driveway though. I'll save that additional risk for now... But it looked good, the car, which is really low, did not hit anything. All the ligfhts functioned (hey this is Alabama, they don't HAVE to function). I believe it will work well.