Barum? lol never heard of them.
They came fitted to my Vectra 1.9 CDTi Estate and I have to admit they're a damn site better than the Pirelli P7 I had.
I do 800 miles a week, mostly motorways, and they just don't rub out, very, very hard wearing.
Very good dry grip, I take some of these motorway slip bends at silly speeds (sorry) and they've never even hinted that they want to skip.
Wet grip seems very good too, though I don't push it too hard in the wet.
Useless in the snow, as you would expect from a summer tire.
Compared to the P7, they're very quiet.