Here's why:
* FWD cars rely on the front wheels for both steering and power. When you're driving uphill in reverse, the front wheels are turned away from the direction of travel, which reduces their ability to grip the road. This can lead to loss of traction and skidding.
* The weight of the car is shifted to the rear when you're driving uphill in reverse. This puts more weight on the rear wheels, which can help improve traction. However, the front wheels are still responsible for steering, and the reduced traction from the front wheels can make it difficult to control the car.
* The transmission is not designed to handle the stress of driving uphill in reverse. This can put strain on the transmission and cause it to fail.
For all of these reasons, it's best to avoid driving uphill in reverse in a FWD car. If you must do so, go slowly and be careful.
