I just saw this on another forum. They had a ROTM section in which those who wanted to participate for that month created a thread/poll (yea or nea) to describe their car, provide pictures and have users comment on the car. Then the most popular ones (i.e, the ones with most votes) made it into the final ROTM poll and members would vote. This would only pertain if there were more than 10 entrants obviously, but a thread still should be made regardless to show off the car.

Keep in mind the first few months will probably see the most amount of activity for ROTM, not saying that a member can only enter once since cars evolve over time but rather people should take time and consider what they are entering and submit their ride when they think it's ready.

Also, since parts aren't quite available for our cars, it's going to take some creativity to win. Maybe a nice shot of the car in a certain place or a nice spread of your car in creative pictures even though it might be in stock form, just not pictures from the driveway.

Just throwing out some more ideas.