Out of all the popular cities in Germany, Hannover is the cheapest city to rent a car in at just C$ 19/day. Renting a car in Hannover is 75% cheaper than renting one in Stuttgart where the per day rate is around C$ 72. Other fairly inexpensive cities in Germany to get a rental car in are: Hamburg (C$ 22/day), Frankfurt am Main (C$ 23/day), and Berlin (C$ 23/day). While these cities typically have cheaper prices than the rest of the country, travelers looking to rent a car in Berlin should expect to spend around C$ 23/day on their transportation. The most popular city to rent a car in Germany is Berlin.