The V70 (1998 T5, 109K mi) is the daily driver. Recently, didn't drive it for 3-4 days, and just after startup there was a higher pitched noice coming from the front end - only when moving. Lasted less than a quarter mile, then it was gone. Duplicated the problem once since. Again, it only happens after the car hasn't been driven for a few days. If someone made me guess, I'd guess a bearing hub is going bad. Anyone else have this experience?

Separate (related?) note - just about every time I get up to 30-40 mph for the first time after startup, I can smell a distinct metallic smell for maybe 15-30 seconds. Then it seems to be gone. Also a recent development.

I would have said Serp. Belt or tensioner, but if it only happens when the car is moving...in other words, the hub is turning with the wheels, then I would say that is it. Someone else posted about this same issue recently, so you might check down lower in all of the posts.
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1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon. My cars have been running so well lately they've got me worried.