I was muckin' about and put together this utility that can automate grabbing screen shots.

I can select a bunch of tracks, which carset I want, how many points around the track I want pictures from, and the cameras to use. I stagger the starting grid evenly around the track and start a single race by replaying mouse clicks. For each location, I cycle through the selected cameras and capture the screen image. When all the images have been grabbed, I not-so-gracefully 'kill' the process and move on to the next track.
Although I can't select specific locations to get the best shots, increasing the number of shots taken increases the chances of getting good ones

If this will be of any use at all, please let me know and I'll upload it.
Have fun

Mike.