One - Chris loves speed!
Two - Chris hates snow - well at least the cold and wet part of it. He had a blast, until after one particularly snow spray-ing run down the hill his gloves became soaked and the ensuing freezing cold hands were his undoing. He started screaming like when he's completely freaked out and there was really no getting back from that.
The good thing is that the folks we were with know he's ASD (their son may be also, they're not sure yet) so it wasn't a big deal. Overall, we had fun and more importantly he did too. Next year, we'll come equipped with better snow gear and I think he will have a blast!
So what was the discovery - he hates temperature "extremes". Anything past warm freaks him out and super cold freaks him out too.