I would think Tesla was aware of font license plates when they designed the car and placed the radar and sensors (We don't have them here in QC, but they are pretty common elsewhere). Euro plates are often much wider than NA.
I can attest that 1/2" of frozen slush all over the nosecone *will* blind the radar and disable Cruise Control. That, they probably don't see so often in Fremont.
If that picture is your car, it has to be the palest shade of Deep Blue Metallic ever! Glad I chose black.