1. Transmission problems: The transmission is responsible for transferring power from the engine to the wheels. If there is a problem with the transmission, it may not be able to engage the gears properly, causing the car not to move.
2. Clutch problems: If your car has a manual transmission, the clutch is responsible for disengaging the engine from the transmission when shifting gears. If there is a problem with the clutch, it may not be able to disengage properly, causing the car not to move.
3. Driveshaft problems: The driveshaft is responsible for transferring power from the transmission to the wheels. If there is a problem with the driveshaft, such as a broken or damaged shaft, it may not be able to transmit power properly, causing the car not to move.
4. Axle problems: The axles are responsible for connecting the wheels to the transmission. If there is a problem with the axles, such as a broken or damaged axle, it may not be able to transmit power properly, causing the car not to move.
5. Engine problems: If there is a problem with the engine, such as a lack of fuel or a spark plug that is not firing, the engine may not be able to produce enough power to move the car.
To determine the exact cause of the problem, it is recommended that you take your car to a qualified mechanic for diagnosis and repair.