Originally Posted by M_Six
In this weather it sux trying to go out to shoot. It takes 5-10 minutes for the lens to acclimate so it's not fogging up. Same deal with driving around with my gear in the car. If I stop to get out and shoot, I have to deal with the condensation. I don't have a trunk in the X5, so the whole vehicle interior is cool and so is the camera.
I deal with that all the time, using my M3 as a shooting-blind. You have to set the cameras on the seat and roll the windows down as your cruise. Here in Colorado I often shoot when it's near 0-F. I turn on my seat warmer, but ride around with the widdows down, hat on, gloves or mitten on and all my gear ready to go. In summer, I do the same, but it's not as much of a problem due to our typically low humidity.