I think the 450 is doing just fine against the Raptor. I watched the new Duncan Racing Vforce race the other day and while its very fast, the bike is extremely heavy. It does sound cool though. Looks like it takes alot of effort to ride that bike around.
The V-Force has got to be the meanest sounding atv I have ever heard. I watched one racing in the dunes at Boxcar Hill that was running the full dual exhaust. Between the v-twin engine and belt drive whine, it sounded like a healthy blown bigblock V-8 running up the hill. lol