I love high strung/reving N/A engines...
The problem(s) I find with the Wankel Rotary is it's poor gas mileage (for the small displacement) and big lack of power under the curve.
The FD was such a beast of a car for the track, that's where Mazda needs to get back to. The RX8 I feel does a lackluster job in everything BUT handling (not saying I hate it). I find their Japanese counter parts (Honda) produce excellent sounding and easy HP producing engines that take a beating and keep on ticking.
I am a big Honda Head. I love their cars. My one and only beef is that pretty much everything is front wheel drive. The Integra, Accord and the civic is front wheel.
The only other car I have really been looking at outside of Honda is the WRX. Can't go wrong with a turbo charged all wheel drive car!