Externally, there isn’t much difference, beyond what has already been posted. But inside, the seats are slightly different. (Perhaps different leather, though still leather?) There is also no Alcantara on the dash or door panels of the Touring.
I think it would be easier to know which one you are in from the inside, in other words.
You can see these differences in the configurator on the web site, by the way. The 3D models aren’t perfect, but they are pretty good at showing the different interior treatments.