A wisp of nostalgia already surrounds these two, because they're the last of their kind: featuring high-revving V8 aspirated engine. That's even though Mercedes has only just introduced its latest model, the C63 AMG. BMW's M3 has been on the market since 2008. Now Mercedes is trying to topple the old champion. It will be the last duel ahead of the dawning era of turbo engines. The need to save fuel doesn't stop even at these performance levels. And, despite the misty eyes, that's a good thing. Drive it! put these muscle cars through their paces.