My husband is 6ft 3in., and he fits with an inch of headroom.
Before buying, I looked up the interior specs and compared with the Stratus and the Neon. The Crossfire is right inbetween. When my husband and I sit in a Neon, our elbows are smashed together. In the Crossfire, we have a few inches inbetween.
Randomnickname, dude, at 6-6, you might have to scrunch down to fit. I guess you'll just have to try it out. Good luck.