Instructions
Press the "Power" button, located at the top of each Wiimote, to turn the Wiimotes on.
Load Need for Speed: Carbon from the Wii menu.
Select "Quick Race" from the main menu.
Select "Split Screen." This option is available only if two Wiimotes are turned on before "Quick Race" is selected.
Select the course you want to race on. The game will now load and the split-screen race will begin.