If you can afford it (and can get it for a good price that you're comfortable with) then go for it.
I was always really anti car payment but I've had one for the last year and it's totally workable and fine. I bought a (shitty/slow/zomgitsucks) BRZ private party in August of last year. It's basically just my autocross car as I rarely drive it to work, but I like having it
Hit up your local credit union -- I got 1.9% interest.