Hi Ben
Here's my attempt. Only slight problem is its in French, as I take the car to various French car shows. The size is A4, so it fits in the windscreen OK. There is also a watermarked picture of the car as a background, but that hasn't come out too well on the scan.
I did also try doing one with various other photos, but that seemed too complex, so I've tended to stick with this more abbreviated form. Seems to be OK as many people spend the time reading it, and you can always go into more detail having a conversation with them.
I've tended to concentrate on my particular car, rather than going into detail about GT40's. Except to say it won Le Mans 4 times in a row. I've also given a brief history of my car, with things like I'm on my second engine and gearbox. Also one of my high spots was driving the car round the full circuit at the Le Mans Classic 2010.
Hope this gives an idea.
Stephen