Well.. see if we could get maybe 12 VERY good, well built cars from the site, have a mandatory image quality / resolution... send in your best photo.. and have one car (one large picture) per month? I'm sure we can find 12 calendar worthy cars per YEAR. They don't even need to be amazing.. just clean cars for a good photo. Maybe use part of the calendar for info about the car, owner etc.. similar to what Honda Tuning does for their spotlight cars...
Or... even just member wallpapers... free for anyone to download like the old days.. winner of RoTM gets their car on a wallpaper available for download... wouldn't make any $, just throwing out some ideas though.