NOTE-Please when reading this try to keep an open mind, and try to keep from just posting "you idiot" or things like that with no reasons to back it up because that gets us no where. Also I hope I didnt make this too confusing due to bad wording becuase i really want people to read all of this. Many people say that there is no replacement for displacement, meaning that you start with two generic 3 liter v-6 blocks and bore and stroke one out to 3.5 liters it will be more powerful and therefore faster making size the only way to build a fast car. However, did anyone ever stop to think that if through lighter internals and better cams that you could take those same two 3 liter engines and say have one take its horsepower reading at 6 thousand rpm vs 5 thousand making the first engine more powerful Wouldnt that then mean that there was no replacement for revs? What if the two motors were idnentical except for one part, one of the engines was a dohc with vvt and the other was a ohv. The dohc with vvt would make more power so wouldnt that mean that there was no replacement for dohc and vvt? What if one engine is naturally aspirated and the other has forced induction? The engine with forced induction would make more power so is there now no replacement for forced induction? Now lets say that we are back to two na engines except one has the tvr speed 12 compression ratio of 13.0:1 while the other has a much more normal 9.0:1 would that then mean there was no replacement for a high compression ratio? The same goes for the forced induction side of it. If there is a turbo stuffing 14 lbs of boost (sorry everone im american and dont understand bars of pressure) in an engine and the other with 9 lbs of boost. Is there now no replacement for a high boost pressure? What if the engines are the same but one engine has a four speed automatic behind it while the other engine has a 6 speed manual. More than likely the 6 speed will produce the better numbers in nearly every catergory so is there now no replacement for more gears and a manual transmission? What if the engines and transmissions are the same but one goes into a car that is 500lbs lighter than the other one. A light weight car will be able to better a heavier one in every performance stat so is there now no replacement for lightweight? What if the engines and transmissions are the same and so is weight but one car is 3x as stiff as the other. When these cars are raced on a track the stiffer chasis will have the advantage over the other car in the turns due to its abitlity to handle. So is there now no replacement for the stiffness of a car? What if everything on the car was the same except for the rubber on the road? One car has a set of high performance pirelli p-zeroes while the other has a set of low resistance tires that have just come from the honda insight with little traction compared to the pirellis? The car with pirellis would be faster due to loads more grip than the car with the low resistance tires. Pirelli says "power is nothing without control" and it is obviously the truth here so is there now no replacement for traction. I could go on like this forever but I think if you are going to get my point you would have gotten it by now. Cars a complex machines and should not be reduced simply to the size of their engines.