Testing the M-Wagon out in a car park, hitching the cabin to the electric trike and seeing how it rode. The first proper go at moving it under power, wheels and trailer sorted out on the ground before taking it any further.
It is one thing to build a cabin that looks the part in a studio and another to tow it down a real road with a real corner in it. This was the day of finding out that it worked, that you could sit on the trike and pull a small plywood room along behind you.
Part of the M-Wagon case study.