Don't know about Halfords, but you can certainly buy the same boxes for less! take a look at The Roof Box Company, www.roofbox.co.uk and you'll see them there. I bought a Thule Atlantis 780 from them in August. It fits on the Audi roof bars in a few minutes with no faffing around, single-key "central locking", opens either side etc. It arrived the day after I ordered it, and the company answered a couple of questions I had prior to ordering very quickly and clearly.
The Q5 boot liner they sell is pretty good as well.
Hope that helps.
The Q5 boot liner they sell is pretty good as well.
Hope that helps.