Welcome.
She's safe coz she has a crappy Mk 2! 
mk3 = car for barbie wife who wants a car with a "status badge" i.e GTI but wants all the fluffy bits like elec windows and aircon! (and blue rear lights)
mk2 = a car for the adventurus petrol head who like to actually go fast and go round corners!!
mk1 = as stated above!

welcome to the forum by the way!!