Back in the day, waaaaay back in the day, in my far-off native New Zealand, the likes of Land Rover, and the then relatively rare Holden, Ford Falcon and Chrysler Valiant 'utes' (Antipodean-speak for the car-derived 'utility' or pickup truck variant originally developed by Ford Australia in the 1930s) were challenged in 1969 by an upstart newcomer - the Mazda B1500. If you'd told the 12-year-old me then that, 41 years hence, the B's successor potentially could soon be the world's top-selling single model, knocking big-brother Ford's F-series off its perch, I'd have just laughed. But it sure looks possible now.