A morgan gets more than a cursory wave, it gets a full on 'bloody hell its another Morgan' sort of a wave often accompanied by flashing lights, flares, fireworks, a traditional Croston dance troupe and festive music by a 40 piece brass band
This has been my experience.
I have yet to see another +8 whilst driving mine. I suspect the resulting celebrations would make the opening ceremony of the Olympics look rather tame.