I flat tow a 2016 VW Golf GTI with 6 speed manual transmission. My Golf was the guinea pig for Blue Ox to engineer and install a base plate for this car. However the Golf had locked steering requiring the key to be in the ACC position. I solved this problem by having a mechanic remove the steering lock pin from the steering stalk assembly. So far I have towed my GTI for over 8000 miles with no problems.
So that VW officially does not approve flat towing any of their models, their manual transmission models are being successfully towed by many owners.