Flat tow Jeep Wrangler or Dolly Tow a Mini?

Set up my '07 mini to tow and towed it around 200 miles. Towed great but supplemental braking only worked on 1(low) and as soon as it started rolling interior lights would come on and miles would run. I thought I wanted a tow rig but at my age 45, I realized it was more hassle than I needed as we mostly just do quick trips. Good luck with your setup whichever you decide.
P.S. do not buy a '07-'10 mini N14 engine has flaws. N18 fixed issues I think. Do your research.