These are the ones we see the most of around here. Grumman AgCat. They used to make 'em just south of the border, in Walnut Ridge . . .
I love these engines. No torque down low, but with a clutch pedal (or paddle shifters) they absolutely rip...if you keep the rpm's up. Lightweight, insanely free revving and fast.I had 2004 RX8, with the rotary engine, and will say from 0-35 mph it couldn't get out of the way, BUT from 35 mph and up, it's like a bullet, just keep whining out, and doing 125 mph with plenty more power to unleash.