Accelerometers would tell you if the wheel rotation and steering angle is still matching the movement of the vehicle. This is useful for detecting stability pr

Accelerometers would tell you if the wheel rotation and steering angle is still matching the movement of the vehicle. This is useful for detecting stability problems like over- or understeer. If the steering is pointing slightly left, the car is moving rapidly right, and both rear wheels are turning at roughly the same speed and way faster than the fronts, you've lost traction and are oversteering like crazy.