How long can a car run continuously on the highway?

[DeClaire]

Continuous driving of a motor vehicle for more than 4 hours should be accompanied by a rest stop, with the rest period lasting no less than 20 minutes. Assuming an average highway speed of 100 km/h, 1 hour equates to 100 kilometers. This means that after driving 400 kilometers on the highway, the driver needs to stop and rest at a service area. Precautions for highway driving are as follows: 1. Pay attention to speed: Avoid driving too slowly, with speeds not falling below 80 km/h. 2. Do not occupy the emergency lane: In the event of an accident, the emergency lane serves as a lifeline. Moreover, the penalties for illegally using the emergency lane are quite severe, including a fine of 200 yuan and a deduction of 6 points from the driver's license.