Teslas go towing.
Tesla's chief designer Franz von Holzhausen says that the recently revealed Model Y will be equipped to tow and he adds that the Model 3 will eventually get a tow bar too, that's according to Norwegian site Elbilen.
Elbilen cites Tesla Owners Club Norway as the source of the new towing info, stating (via Google Translate):
Newly launched Tesla Model Y will have towbar. That's what Tesla's chief designer Franz von Holzhausen says of the electric car when we met him at the Model Y launch.
Of course, we asked if Model 3 will also have a towbar. - Yeah. When? - Soon, his short answer is.
A while back, we uncovered possible news of the Model 3 being equipped to tow. As we previously stated (see link above):
"...new drawings of the Model 3’s inner workings show a Trailer Light Controller and Trailer Light ECU... there’s no way to know if those who have already ordered a Model 3 may still benefit."
So, combined with the words of Franz, we'd say this seems pretty set in stone now. Both Model Y and Model 3 should have the ability and be rated to tow, at least that's what all this news and info suggests.