Southwest Germany has an excellent network of roads, including motorways/highways (Autobahn).
There are no tolls for passenger cars. Drivers are required to carry a valid driver's license, vehicle registration documents, and proof of proper insurance. Seatbelts must be worn in all seats, front and rear, at all times. Only hands-free cell (mobile) phones may be used. The minimum driving age is 18 years.
As in the rest of continental Europe, traffic is on the right-hand side of the road. Passing on the right is prohibited. For passenger cars, the speed limit outside residential areas is 62 mph/100 km/h. In urban areas, it is 31 mph/50 km/h. On the Autobahn, the maximum recommended speed is 80 mph/130 km/h.
Rental cars are available in larger towns and cities, from locations, such as airports, railway stations and hotels. All categories are available, including vans, compact cars, convertibles and, of course, fast sports cars. Look for weekend deals.