Dug the camera out to see if I could get any pics of these.
Obviously being indoors, the cars being tiny and very fast, it was quite hard to get a decent shot. I was using manual focus on my D50 too.
Nigel Hale's 12L4
Jewitt's Calandra
Jim Spencer's 12L4
Mick Farrell's Calandra
Then someone got bored and did this.
*The picture quality is quite pants as it was took without me altering the settings from indoor to outdoor.