In response to August being a "pity month" for N/A's, it certainly isn't. ROTM is setup so that cars are picked to show something unique about the Supra. Yes N/A's can compete in other months, but the people who run ROTM decided that there would be a few special months every now and then. We may have a month where only Turbos can enter, or only CT-26-powered cars, or only red cars, or only hardtops, etc. It's just a fun contest to get people involved with the site. It is not a pity month, it's just something different.
Have fun and enjoy the contest, I hope to see more people entering this in the future, the pickings have been somewhat sparse. Submit your car, even if you think you won't win, what could be the worst that would happen? You never know, people might like something about it!
Enjoy.