Earlier quoted context omitted.
Here in Europe, fat American-style SUVs are still somewhat rare, especially outside cities (!). People still can't corner worth shit in their "regular" sedans. And I say this as a pretty chill motorbike rider. I've lost count of the number of Golf GTIs and similar behind which I have to wait around when riding on roads that aren't perfectly straight. And these cars should have better cornering ability than my fat bik…
Sometimes I wonder whether going excessively slow around corners is a symptom of people pushing their steering wheel from the side opposite the direction of the curve instead of pulling it from the same side into the curve. Just a hunch, but doing the latter usually feels like I have more control.
So I'd say these people have a hard time figuring out the space on the road their car takes. I can only imagine this worsens with larger cars and less visibility.