I wanted to try this type of photo for a long while, just never got around to it. So last night I decided to force my wife to drive, and I sat in the back seat with my camera wedged between the seats. The camera has to be very secure in the car, because the bumps in the road make everything shake. When it is secure at least the inside of the car come out unshaken. It wasn't easy, this experiment, but I know what to do now. Small apperture, around f11 or higher, and either set the camera on manual and play with the shutter time, or leave in on aperture priority, and hope for the best. Also setting focus to manual and infinity, makes things a little easier. Enjoy!