Since the subject of wind turbulence has come up more than once, I feel the need to put in a plug for the Mingster Aeroscreen. It works way better than the stock wind deflector (which didn't come with my car, since it's a 2000). I brought along earplugs, which I always use on my motorcycle, but never felt the need to use them while driving. I never felt the need for eyedrops either.

The wind turbulence was cut down enough that I kept cool with the air conditioner on when the temperature was over 100 degrees and kept reasonably warm with the temperature in the 30's, all with the top down. (On my trip unless I was getting wet, the top was down!)

 

thanks for all of the tips. i'm glad i can get useful information here. i'm looking forward to my trip, and about 20 hours of showing off the S.