I've seen a few strange Golfs over the last few week on my travels.
16 plate mk6 cab - how are they still making these?? Just looked and you can still configure one!
GTD estate with the red GTI striped front grille.
Golf S (16" wheels very basic model) with the GTD front grille (silver strip) but GTI badge!
GTD with halogen front lights/halogen DRL.
Yes, the current Golf cabriolet is a mk6. I'd be surprised if VW sell many new ones, unless they are massively discounted. Even then, numbers will be small.
The GTI / GTD grilles fitted to non-GTI / GTD models; these will have been bought aftermarket and fitted by the owners, unless VW mistakenly fitted the wrong grille when the car was built!
The GTD with halogens will be a non-UK spec model; one of the car supermarkets were selling these a while back. I believe that the earlier mk7 GTI came with halogens in Ireland too.