I agree with Stan, that temps of 100 degree is not fun in an open car. However, I have driven open cars all across the country for years without a top and it wasn't bad if you are prepared. Dress for the sun with light weight long sleeve shirt, good sunglasses, some kind of head gear to shade your head and protect your soft chewy, apply a good sun block, drink lots of water, even if you are not thirsty because your body will sweat and evaporate without you knowing it, and cause you to be dehydrated. Another trick I use is a small collapsable umbrella that I keep by the seat and use if I'm sitting in traffic or stuck at a railroad crossing for a half hour in nowhere land. I also wear a neckercheif to keep the bees from going down my shirt, Never a good thing! I've been across the desert in 115 degree and it feels like someone has a hair dryer blowing in your face. But if you are prepared for it, it can be done with some planning and your friend, water !!