How much more difficult (or fun depending on how you look at it), is it? I'd think that if you had really good wet traction tires then it wouldnt be so bad.

 

It's hard to say what is more difficult, it's very different. I've even autocrossed in the snow.









Grip is a lot less when it's slick, but if you're on street tires all the time you're at an advantage vs. the people who are normally on slicks. Some of my best finishes (vs. everyone running) have been in the wet.