In Norway, you have to indicate your exit in a roundabout by activating your turn signal, and he found it difficult while turning the steering wheel, which you have to do in a roundabout. A driving student would fail their test if they don’t activate their turn signal in a roundabout in Norway.
He said:
I tested the Model 3, and noticed that I lost both focus and direction in roundabouts. It’s not directly life-threatening, but you run the risk of both driving on curbs and other cars if there are two lanes.
After posting his findings in a group for driving schools, he was met with agreement by many other instructors who said that they experienced the same issue and the risk is much higher with students.