The best system will send exactly the right amount of torque to each wheel, which is the maximum torque that won't cause that tire to slip.

We need to know a little about torque, traction and wheel slip before we can understand the different four-wheel-drive systems found on cars.

It can occur with tyre injudicial controlling, if the ABS system controls tyre drift-out, Anti-slip Regulation control driving wheel sliding and engine controlling retarding to torque.