Wow this thread grew! Lets just take the top five 4 cylinders vs the top five v8's , all street driven cars ! And we'll see what results we get? We know there are fast 4 cylinders and this is not a newsflash I can remember reading about them 10 years ago the question is how many are reliable for daily use and 10 second passes! I think of it like a guy who weighs 120 to start trying to out muscle a guy who weighs 220lbs , if they boith work out the same amount the 220lb guy would be able to lift more due to his natural strength, there are just limitations to certian things, I'm rambling just my .02c!!