Posting here because nothing on V50 board. I've been driving 240s for 25 plus years and still drive several. I recently drove a V50, liked the handling and spartan feel (reminded me of 245, but w/o cargo space) and bought one. Naked roof. I need to either put on rails for crossbar attachment, or use Thule/Volvo foot system for removable feet/crossbars. Just wondering how much noise the permanent raised rails make compared to naked roof, and if reduce everyday 60 mph mpg much. [I raise the mpg issue because saw claim that adding spoiler with rails improves mpg @3%. Language conflating the two suggested to me that rails hurt and spoiler remedies it, in part.] I actually prefer the appearance w/o rails, but load bar spacing w/o rails is @32", and IIRC with rails @42". Might make a big difference when carrying a longer load. Thanks.