Warburtons have struck up a partnership with Lidl and are now being permanently stocked in stores, this includes loaves, thins and baps. My local store, which
I have seen pictures of some stores which have a gluten free section at the moment too, the store I visited in Middlewich, Cheshire, today only had the permanent Warburtons range though (which I believe is in all stores) not this range, so it doesn't appears this isn't in all stores so is more than likely temporary as a special offer.
This time the range consists of (prices given if I know them):-
Nestle Go Free Cornflakes and Rice Pops £1.75
Chocolate and Normal Digestive Biscuits 99p
Butter Cookies 99p
Gluten Free Oats
Chocolate Rice Cakes
Mrs Crimbles Macaroons (these could be permanent)
Beware they also have Nairns crackers but they are the WHEAT FREE range not GLUTEN FREE, so make sure you check as the wheat free crackers are not suitable for gluten free diets.
These lines aren't in every store so best check to see if your local has one, I'm not affiliated with Lidl so I can't tell you if your store is doing it, you will have to ask them.
It sounds like a fairly decent range and the new permanent Warburtons range is definitely a highlight, since Aldi have removed their permanent range of gluten free it's not always easy to get cheaper loaves.