I replaced a 1999 Miata with my Crossfire and never really thought about how much bigger the Crossfire was until I parked next to a Miata at Buttonwillow. Geez, those Mazdas are itty bitty little things!!!

As for interior room, it isn't just how tall you are but how long your legs & torso are. I'm 6'1" but have a 35" inseam (I know guys my height with 32" inseams and that 3" makes a big difference - back in my bicycle racing days none of these guys could ride my bikes; they'd sit on the saddle and couldn't reach the pedals!!). Headroom is not normally an issue for me in most any car, but leg room can be. I was fine in the Miata, and I'm fine in the Crossfire. Of course, I have a Roadster so headroom is unlimited!!