My son had a reg plate on his Cinquecento that included "MBW." We christened it My Big Willie. Once we'd tuned into that, it was amazing how many plates we spotted that ended in "...BW." So we spotted a good few Awfully Big Willies, Disgustingly Big Willies, Extremely Big Willies, Horribly Big Willies, Lovely Big Willies, Massively Big Willies, Suntanned Big Willies, Terribly Big Willies, Unusually Big Willies, and, of course, F*****g Big Willies. I'm ashamed to say that we still play that game with reg plates after more than 20 years. Passes the time during my frequent sojourns on the M5 and M6.