I'm looking to pick roof rails for my 2010 xc60. There are two oem models:
- Part. No. 30789025. Aluminum profile. Gives a minimum of wind noise and air drag, but some load carrier accessories must be adapted to fit the T-track.
- Part. No. 31214946. Square profile. All load carrier accessories fit. It warns "The load carrier should not be mounted on the roof when not in use since this results in increased fuel consumption and wind noise".