My Targa was my daily driver (and only car) for three years.
I've driven it in everything. Those 255 wide tires sure suck in the snow. It's like trying to steer a garbage can on banana peels in a Crysco factory.
Thank god I'll never have to do that again.
My car leaks like mad. I've tried everything. I now believe the only solution is to get a garage.
But yes, I have driven in rain, sleet and snow. Luckily in Idaho they don't use salt on the roads, they use sand. Although it is scary as hell to ride a crotch rocket in April (don''t ask), you don't have to worry about the salt corrosion.
I put tarp over the roof and put a car cover over that and hope for the best.