Tire Chains
I see no reason not to run the trucks in the winter too. We have two lakes within our city limits.
I want to try them on the ice. I hope the chains work. They should be a lot of fun!!!

2005 update: I tried them on some small patches of ice a couple times at the end of last winter
last year. They work great! The coil springs stretch when the tires expand from the centrifugal force. They aren't too good on snow. They fill up with the snow and don't get much bite, but on smooth ice,
all you see is rooster tails! I'll have to get some video clips this year!