Pretty sure all UK Mk7 GTi's / GTD's / R's came with full bi-xenon headlights with DRL' as standard.
If you find one that hasn't got them, then it's almost certainly an import.
My Octy vRS had standard bi-xenon's, and I never found the low beam lacking in any way. In fact, literally night and day better than the halogens I had on all previous cars. Can't understand why the Mk7 bi-xenon's wouldn't be at least as good.