Is it possible to daily drive a c3? Excluding winter, I would absolutely daily drive a c3 spring through fall. I know how to drive and am not afraid of driving a rear wheel drive sports car through the rain.
The only two things I am afraid of are
1) Leaks. I've heard that T Tops leak. Is this from weather stripping needing to be replaced or they leak regardless? I know corvettes after 76 had steel floor panels and if water gets trapped in between the carpet and the floor pan, it will rust out very quickly.

2)Rust in general. Will daily driving a c3 cause the frame and birdcage to rust out much faster? I would love to drive one everyday as my main car, but I don't want to if it means the car will be a rusty mess and it will not be able to handle the rain.

 

I drove mine to work daily thru rain, sleet, and snow from the day I got it new until I retired and pulled the engine and transmission for overhaul. I had no problem driving through up to 6 in of snow with Goodrich TA 255/60 tires. I always took pains when washing it in the winter time to flush out the frame rails and under the wheels and undercarriage. The thing that the salt bothered the most was the side exhaust covers.