It's not just "your engine."
Every engine is designed around certain basic desires and assumptions. Generally speaking, a smaller piston (bore, plus) means less mass to decelerate to zero and accelerate to blinding speed twice every revolution...and the forces imparted to the rod and big-end bearings are dramatic. A shorter stroke means lower piston speeds, so it can rev higher, but it's producing less power in each stroke. An inline 4 means a shorter crank, with forces acting in fewer directions, so it has less of a tendency to deflect as compared with a V8 (or 10 or 12). As you increase revs, though, frictional forces rise as well, and of course everything gets hotter and works harder -- and you have to manage more flow patterns (both intake and exhaust) and valve float. But that's a tradeoff choice as well. A smaller engine revving higher to produce a workable powerband describes most motorcycles (some with redlines way up near 20,000) and that's what the S2000 was going for, a workable powerband with improved economy in a small package.
The big V8 under your hood has a useful powerband at lower revs, and makes tremendous amounts of horsepower while generating loads of torque, too. So there is no reason for it to rev high, so it's not designed to do that.
There is lots of information on the internet about this, and if any of Kevin Cameron's articles are floating on the web he often discusses such things in ways layman find more approachable.
Hope that helps a little.