Vettes handle weather great!
I can't vouch for C3s and earlier, or any pre-traction controlled cars for that matter, however the later C4s and C5s handle and drive great in almost any weather, provided the driver is capable. My '96 was my daily driver, and as a matter of fact, my ONLY car for the year and half I owned it. On the couple of occasions where the weather turned foul, I had no problems with it. In fact, I was the only person to make it to work one day when we received 8 inches of snow and ice... and mind you, I live in truck country (Arkansas) and even the 4x4s were in the ditch. This year driving my C5 home I ran into what was left over of some very nasty weather outside of Memphis... I hit a wall of slush and ice about 6 inches deep at 70mph... no issues. Just let up off the gas and allowed the car to coast down. Once down to a reasonable speed to keep me from sliding too much and still allow me to merge into a clear lane with faster moving traffic (about 50mph), the car pretty much followed where I wanted it to go. Some of this is driver ability (I've been driving in these conditions every winter for my entire driving career starting at 16), but mostly due to the engineering of the car. Where the wide footprint of the tires can cause hydroplaning in rainy weather, the wide contact patch aids in traction in the slippery stuff (with carefully applied throttle of course). And yes, my '04 is my daily driver, and once again my ONLY car.