You said "I can afford it, but it will make things a little tighter for us, for sure". So there are others (loved ones, I assume) you should be concerned about which makes it an even less intelligent thing to do.
Save your money. Pay off that current loan more quickly by adding something to the principal each month (no matter how little). It may take a few years but you'll be glad you did - and there will be plenty of beautiful like-new Camaros out there when you can truly afford one.
No need in being car poor. If you are on the fence, then its probably not a good idea. Think of it this way; when you are truly ready, there will be something out there much better anyway. Dont complicate/stress your financial situation.