Whether I drive in a car or ride my 300i, or even my moded Vino (to a 150), I very rarely see scooters on the freeways.
I live in the South bay area of SF, and my freeway commute is typically 101, 280, or 237. On these freeways, I see, besides cars & trucks, mostly "shiftey" motorcycles.
Anyone from the Bay area notice this as well?