This far into a franchise like Mario Kart, that's not necessarily a good or bad thing; it's just a key point to note when you fire up your Wii and rev your 150cc lawnmower-on-wheels.

Mario Kart Wii comes complete with three Grand Prix speed classes – 50cc, 100cc, and 150cc – with the expected unlockables after that. Each character fits distinctly in a race class, ...