It's very easy to tell the difference between a rotary engine and a piston engine rx7 without even looking under the hood. I'll show you how.......
Rotary rx7
v8 rx7
Thread winner.
Seriously though, I can definitely respect rotary engines, but you folks that are getting your panties in a wad about the LS1 swap are ridiculous. OH NOES, HE SULLIED THE SANCTITY OF THE ALL MIGHTY MAZDA NAME!!!