I almost never drive with the top up, my Z4 is not my daily driver, unless weather is nice then I drive itnall the time. On a couple of occasions I have got caught out in the rain I will obviously put the top up and there were a handful of other occasions where it was nearly 100 degrees and 90% humidity and top down driving is absolutely miserable but for the most part the top is down all the time, even gets parked in the garage with the top down. The main reason the top goes up is when I wash it. I find top down nighttime summer drivingto be some of the best topdown conditions.
I live outside Chicago so I only get about six months to use my car, this weekend it is supposed to be in the upper 50's, car is coming out of the garage for the first time and the top will be down.
Haters gonna hate