[USAFPILOT]

The new Shelby 5.8L engine is in fact the most powerful production V8 ever built. It is 650HP and the car is capable of 200MPH and 24MPG. I think it is a remarkable car to have that performance along with a backseat. So yes it does have a smaller displacement yet more powerful engine than the ZR1. I'd personally love to see GM license that motor and put it in the Vette.