Consuming what substance before or while driving, can make you unfit to drive?

The combination of cocaine, alcohol, and hashish is correct because all three substances significantly impair motor skills, judgment, and reaction times, making a driver unfit to operate a vehicle. According to German traffic laws, specifically the Road Traffic Act (Straßenverkehrsgesetz), driving under the influence of these substances is prohibited. The law aims to enhance road safety by preventing impaired driving, which can lead to accidents and endanger the lives of the driver, passengers, and other road users. It's essential to understand that being impaired by even one of these substances can have serious legal consequences, including fines and loss of driving privileges.