Berlin Saturday. Munich the Saturday following.
Plan B keeps the booked München night (Fri 18) and Oktoberfest (Sat 19) exactly as-is. To fit a night on Lake Constance, it trims Berlin to the arrival evening, drops the Autostadt detour, and runs the Nürburgring on Wednesday evening — freeing Thursday to drive Stuttgart → Lindau for a night on the Bodensee before rolling into Munich on Friday.
Berlin City wander.
Berlin → Wolfsburg → Cologne.
Cologne Dom & brauhaus crawl.
Cologne → Burg Eltz → Cochem → Nürburg.
Nürburgring Touristenfahrten.
Nürburg → Stuttgart → München.
Oktoberfest Eröffnung.
Abreise aus.
Berlin Arrival.
Berlin → Cologne.
Cologne Dom & brauhaus crawl.
Cologne → Burg Eltz → Cochem → Nürburg.
Nürburgring Touristenfahrten.
Nürburg → Stuttgart → Bodensee.
Bodensee → München.
Oktoberfest Eröffnung.
Abreise aus.
Plan B keeps the booked München night (Fri 18) and Oktoberfest (Sat 19) exactly as-is. To fit a night on Lake Constance, it trims Berlin to the arrival evening, drops the Autostadt detour, and runs the Nürburgring on Wednesday evening — freeing Thursday to drive Stuttgart → Lindau for a night on the Bodensee before rolling into Munich on Friday.
Heidelberg · pretty but a tourist coach park. Rothenburg ob der Tauber · same. Spa-Francorchamps · the Belgium detour kills two days. Frankfurt · airport only.