it's the same with all cars
until they are superceded by a facelifted model, they will never be known as the "MK 1" until there is a "MK 2"
look at the granda's, they still call the first of the smoth shaped ones the scorpio rather than a mk3 and so on and so forth when they wer'nt all scorpios
then you had the scorpio come along and they called them the frogeyed ones

it doesn't make sense but we all have to live with it