Hi,
http://www.chwhite.btinternet.co.uk/html/atera_strada.html
I got one of these and it's good. However when driving it doesn't half move about in the rear view mirror. Bit disconcerting initially.
I purchased it as it was the best "tilter" in it's day, was light and could, if need be, be stored in the boot when not being used ie when riding. Also had reversing light – if wired correctly.
The Thule ones available, at the time i was looking, had a problem with bikes jumping out of the skis – no doubt been sorted by now.
I note that at the moment there is no link for the Strada on the roofbox company's website – so may have been withdrawn from the market.