I drove mine last winter without incident but I only like to keep cars for two years then Im bored. Its my opinion you dont need a hard top just because it snows. I dont have one and its not like it was cold inside the car or anything. I also believe the car does so well because its mid-engine. Just keep it clean and you shouldnt have any problems. My whole life I have kept my cars nice for the next guy, not anymore. I just keep checking my friends lot for my next ride.....
www.thomasclassics.com he has some nice stuff there, been saving for a Viper for 5 years by the way and Im half way there.