What is the difference between BMW M5 xDrive and M xDrive?

What is the difference between BMW M5 xDrive and M xDrive?

• The new BMW M5 is coming out with the new all-wheel drive system BMW M xDrive. What is the difference in hardware between xDrive and M xDrive? Bernd Jacob: The xDrive hardware is the same as in M xDrive. For example, the transfer case which distributes the total torque coming from the engine and the transmission to the front and rear axles.