the tow bar that I see used, I had asked the gentlemen how far they went with it,..they had said 5 miles one way and top speed was 45 mph on secondary roads,..
Personally I wouldn't tow it on an interstate with the tow bar set up,..I'd feel allot safer with a parameter frame trailer with plane on it,..

the gentlemen that I had spoke to had a model 3 with stock landing gear,..and the stock kit smooth tires,..