Hello, and welcome. The 300 SportCross is a brilliant car - you will not regret buying one.
BRINK do a removable tow bar for the IS300 SportCross – I had one fitted to mine soon after I bought it, primarily as the mounting for a mountain bike carrier but it very occasionally gets used for towing a light trailer.
I can’t remember how much it cost just at the moment, but the memory banks might drag up the number later on. Indespension’s Derby branch fitted mine in about 3 hours, but that's not very close to Switzerland, sorry!