Anyone yet know if any of the available hitches will fit the plug-in (ie, without cutting, modifying)?
Since it would have to be a 3rd party solution, it may be a while before something comes out. You do know the vehicle is not designed for towing and it is not recommended and may void your warranty.
I'm not planning to tow anything. As I did on my 2006 Pius, I like using the receiver hitch for attaching a bike carrier. I don't like the "strap-on" type of carriers because they inevitably scratch or dent the car and also I can open the hatch easily with the bikes still on the car with the receiver hitch type of bike carrier.