More than half of the total length of the German autobahn network has no speed limit, about one third has a permanent limit, and the remaining parts have a temporary or conditional limit. Some cars with very powerful engines can reach speeds of well over 300 km/h (190 mph).

Technically, yes, you can legally drive at 200 mph (322 km/h) on certain sections of the German Autobahn, but it is rarely practical. Roughly 70% of the network has no permanent speed limit, meaning there is no legal ceiling for passenger cars. However, there is a "recommended" advisory speed of 130 km/h (81 mph); exceeding this significantly increases your legal liability in the event of an accident. To reach 200 mph, you need a high-performance supercar, an empty stretch of "de-restricted" road, and perfect weather conditions. In reality, heavy traffic, frequent construction zones, and dynamic speed limits (indicated by electronic overhead signs) make maintaining such high speeds extremely dangerous and difficult. Most high-end German cars are electronically limited to 155 mph (250 km/h) for safety reasons unless specifically modified or "unlocked" by the manufacturer.