the white on is a MK5

the grey one is a MK5a/b/.5 or facelift

I do call it mk5b myself and i've had a couple, but it's like house/flat numbers. You get for example 61 and 61a

not 61a and 61b, lol, so people call it a 5a, the orginal mk5 definitely isnt a 5a, but the facelift could be termed an A or a B. Confusing, eh? lol

anyway, that grey one for sale is stunning, love it