The minimum age for driving in Germany is 18. International drivers require a valid license and proof of insurance. A country identification sticker must be displayed on the vehicle. Seatbelts must be worn at all times and children under 12 years can only travel in the front seat with a child restraint.
German laws are strict by many accounts when it comes to driving after you have had a few pints, glasses or snifters full of your favourite alcoholic beverage. The legal maximum alcohol to blood ratio for driving is 0.05%.