The driver left the wheel and went to sleep.

The driver, looking tired and sleepy, yawns with one hand over his mouth while looking out the window at the car speeding down the highway. The main character then lifts the suitcase stuffed on the accelerator, straightens the steering wheel, and crawls into the bed in the back to sleep. The camera then turns back to the window where the scene passes by quickly, focusing on the empty steering wheel and the suitcase on the accelerator. But when the camera turns straight to the road ahead, the truth is revealed: the car was actually being towed by a tow truck, not driving on its own.

According to VNE