Thought I would put my bit in here.
At £115 I don't think its overpriced and its compatible
with the Thule range of products with the Thule type Aero bar. The rack
is very well made and simple to fit. With the rack being cut to the
right width you don't have to fiddle getting the feet the right distance
apart and get the right amount of bar at each end.
Here are some photos. I have my Thule bike carriers fitted.
They sit nice and low and blend into the car nicely
And under the end caps are the Aero type bar allowing to to slide on Thule products.
They are very well made and esy to fit, I have found that with all genuine vauxhall roofbars.