I've noticed my Super Sports do a very admirable job, even in the single digit temperatures I've been driving in. I know nothing that fits on a Viper wheel is very good for performance driving in cold weather, but I just drive it normal when conditions aren't good. My other options for transportation are a 67 Dart with a 5.7 Hemi and T56 6 speed, but only single floor vents for heating and a large, not so well insulated cabin, or a 71 Vette with a carb that would probably take longer to warm up in the cold than it takes me to get to work. I did do a header swap on my car over the holiday break as well, but typically the Dart is the project car, the Viper is the driving enjoyment car.
I have seen some interesting news/rumors regarding Dodge, SRT, and Viper racing in general, but nothing too earth shaking. SRT Motorsports is potentially dead, but only because it's being rolled into the Mopar banner (allegedly). So in reality nothing exactly changes, just a different name. There was the news that Riley Motorsports is wanting to take the Vipers to Le Mans as a private team as opposed to factory backed, so that's potentially some good news for Viper racing fans if they can get the means together to get the cars ready and across the pond.