I'm really tired about the misconception of "the rotary makes all this power from only 1.3 liters!"
The Renesis/13b is 654 cc's per chamber, of which there are three chambers per rotor. The Renesis/13b is much more accurately described as a 3.9 liter (3924 cc), not a 1.3 liter. This explains its power, its torque, and its fuel consumption. In reality, the rotary is NOT a very efficient engine in terms of volumetric displacement. However, it is very efficient in terms of overall engine size. That's a point that always bugs me.
Anyway, as for the car, I drove one a few years ago on a little autocross course. It's got a very neutral chassis, which is nice, but I found the suspension and steering didn't filter enough road feel to the driver. Also, the engine may rev, but it feels sleepy all the way up to 7500 RPM, and stock it sounds like a vacuum cleaner, not a performance car. I readily acknowledge that there are some amazingly cool sounding rotaries (I think the best I've heard was a bridge-ported 20B that had this intense, crackly sound to it), but a stock Renesis is certainly not in that group.