Latest BMW 5 Series Touring

It did win a towcar award for CCC results here  https://www.thetowcarawards.com/

I would imagine that if there were any issues it would not have won

I have the F11 with the factory electric bar. The ball is very close to the bumper and the issue I always seem to get is when I raise the hitch off the ball, the hitch spring decompresses and hits the bumper.

that's because you are not driving forward a couple of feet to extend the damper/hitch when pitching up. I even put handbreak on in storage site as slopes and then drive forward a little.