to be honest with you guys a good wash is really all you need for a photo. so for the black WRXs might want to bring a bucket or two of water, wash it on the spot, dry it real quick. HAR! My second subie was black. never again. I'm lazy. Silver is one of the best colors for lazy people.
my camera is good and everything but it won't pick up the difference between and nicely washed car and a detailed. Dang sounds like I'm playing with semantics.
Wide shots, like that have the whole car in it would be safe if it was a little dirty. Up close and personal on the shiny go-faster-bits might show some need for detailing.
let me know if a time and place gets decided on.