She's got a 300mm lens.

She's usually pretty good at getting shots of on-track stuff, like the one in my sig. Here's a couple more at Willow Springs...
And Laguna Seca...
And California Speedway...
If she finds a good place to shoot from, she'll probably get some good ones. I'll tell her to look for you guys too. Last time we went to Willow with some of the Vette guys we know, she got lots of pics of all of them and mailed out CDs to them.