The Escort NOW known as Mk 1 was not called Mk1 until the MK11 came out, I was there at the time it came out.
No manufacturer calls the first car, in what later becomes a series of cars, Mk1 because they don't know that there will be a Mk11.
Its only part way throught the production years of the first one, that they realise they have a good name , that they then decide on the next revision and call it Mk 11.
As someone has said Focus was Focus until the revised model was planned and became the Mk11 Focus, then the facelift Mk1 Focus became Mk1.5
The first VW Golf was not called Mk1, The first Granada was not called Mk1, The first Mondeo was not called Mk1, Until the second in what became a series was produced.
Is someone going to lock this thread now.................