Each year American Muscle of Malvern, Pennsylvania, an aftermarket parts supplier specialising in custom parts for Ford Mustangs - from 1965 to the latest models - brings together a dozen of the most eye-catching Pony Cars its customers have built over the past year, and a similar number of decorative young ladies, wearing about as little as they think they can get away with, for a calendar shoot.
The standard is very, very high.
Just to be invited to have your car featured in the calendar is a mark of appreciation for the work you've put into it - as you'll see from the cars in the video below, the standard is very, very high.
However, their owners also get invited to the shoot, and they get to spend the day hanging out with fellow petrolheads, watching the models strut their stuff for the camera.
And as you'll see in the video below, the standard is very, very high; join us at the 2013 American Muscle Mustang Calendar photo shoot.