The A-96 autobahn provides the most direct route between Munich and Lindau. For a more scenic, slower route, take B-12 via Landsberg and Kempten. For another scenic and slower route from Frankfurt, take B-311 at Ulm and follow the Oberschwäbische Barockstrasse (Upper Swabian Baroque Road) to Friedrichshafen. From Stuttgart, follow the A-81 autobahn south. At Exit 40 take B-33 to Konstanz, or the A-98 autobahn and B-31 for the northern shore. Lindau is also a terminus of the picturesque Deutsche Alpenstrasse (German Alpine Road), running east–west from Salzburg to Lindau.
Lakeside roads, particularly those on the northern shore, boast wonderful vistas but experience occasional heavy traffic in summer, and on weekends and holidays year-round. Stick to the speed limits in spite of tailgaters—speed traps are frequent, especially in built-up areas. Formalities at border-crossing points are few. However, in addition to your passport you'll need insurance and registration papers for your car. For rental cars, check with the rental company to make sure you are allowed to take the car into other countries. Crossing into Switzerland, you’re required to have an autobahn tax sticker (CHF40/€40, purchasable in euros or Swiss francs) if you plan to drive on the Swiss autobahn. These are available from border customs offices, and from petrol stations and post offices in Switzerland. This sticker is not necessary if you plan to stick to nonautobahn roads. Car ferries link Romanshorn, in Switzerland, with Friedrichshafen, as well as Konstanz with Meersburg. Taking either ferry saves substantial mileage. The fare depends on the size of the car.