Re: When it heavy rains, Sport o Snow?
Like Scott said, all about the tires in that situation, but I leave it in Auto unless it's dry and I'm having fun (sport/track). Snow means snow mode.. unless I feel like throwing it around, then track.. with traction button held down for five extra seconds (when you're in drive, but stopped at a stand still)... wait for the ding.. so it's truly off. (when it says off it is still on to a degree unless you hold it down for five seconds until you hear a ding and see it in the main display that it's now off.
Mine also said.. GO HAVE SOME F*CKING FUN NOW, EH!
Pretty sure this is a Canada option