Thanks for the advice, Matt.I think I will avoid bag. I have an old Volvo canvas with hardboard floor carrier, but only used it on 240s with the ridges. Looked at it but I am afraid it will scratch too. Got some lightly used (but free) Volvo bars from former brother-in-law(!) that I tried today and ...

Recently bought a 2006 XC70 with roof rails. May need to use a roof top carrier for an upcoming trip. Have seen several soft bag type carriers that sit on the roof and tie to the rack, but dont know if I can use a bag type on the roof of this car. Other sites seem to recommend installing bars on the...