I ve seen pics of a mk3 egv in the older livery with a rake of the newer livery, i ve seen pics of the galway mk2's mixed with regular livery mk 2's . It was far more common with mixtures of liveries in the cravens/park royals, i ve one pic with a gsv in black/orange, park royal with white stripes and 3 cravens in a mix of all liveries.