The old saying still stands true, "the only substitute for cubic inches is cubic dollars". If you want to go fast, go big. The realy nice thing is with all of the money put into aluminum component research the "go big" doesn't really mean "go heavy" anymore and "big" is getting cheaper and lighter all the time. That said, I'm happy with my "4 banger" in the S2K because I can get past my personal limits with it. But, I've been a "small block" Chevy fan since they were still 265/283/327 CI and will love seeing the new, light weight V8 "7's" eating up eveything at our local tracks as they become more common.