The lifelong question, is there a replacement for diplacement? Or, is there a happy medium needed to be reached depending on the type of driving done by the car and the weight of the car? Personally, I like smaller, lighter sports cars. Bigger engine=more weight=less fun. Smaller engines in theory would be better, but can you "replace" displacement? I think that in some cases you can. For instance, the S2000 is amazing on the track, but it pretty much sucks for normal driving. (Who wants to downshift into third gear on the highway to pass someone???) Also, consider the N1 Inline-6 on the Nissan Skyline which produces 280 hp and 289 ft lbs of torque at only a 2.6 L engine, and this engine is restricted, able to put out well over 400 hp otherwise. Also, consider turbos vs. more displacement(turbo lag, less weight, bulk with smaller engine and turbo). In some cases, I believe there is a replacement for displacement. In most cases, though, I'm sorry to say that there is currently not. Otherwise, you would see more 3L and less engines in $100,000+ cars. How many do you see now? What do you think about this?