Before you hire a car, you need to take into account Frankfurt’s laws for driving around the city. With heavy tourist activity and a high crime rate, laws in Frankfurt have become even stricter. There are regular fines, tailgating charges and radar traps to watch out for. Moreover, Germany has a very stringent DUI policy i.e. driving under influence of alcohol. Any amount greater than 0.5mg - which is no more than one glass of wine, is unacceptable. Therefore, be sure to stay sober if you wish to drive around.