Well the wife finally had our new baby on Monday weighing 8lb 13oz, pretty big compared to the small frame of the missus. Anyhow we have 2 children now and make regular commutes to the parents house at the weekends. This means huge amounts of luggage also come with us. I originally bought the a4 avant for this purpose but still need more room...eek!, after spending a small fortune on preventative maintenance (cambelt, water pump, full service, gearbox oil change) I'm not to keen to sell. My other option is to get a roof box, however we have limited storage space at home (no garage, shed), however do have a enclosed garden. Looking at roof boxes theres the new semi rigid ones (Thule ranger) we've been considering this, has anyone had any experience of these? Also whats the best roof bars to get for the avant with factory fitted side bars? If the rigid box is better which ones are best?, how does this effect fuel economy? Any help would be much appreciated.