Bundesautobahn 6 (translates from German as Federal Motorway 6, short form Autobahn 6, abbreviated as BAB 6 or A 6), also known as Via Carolina[1] (between Nuremberg and the Czech border continuing to Prague - by Czech motorway D5) is a 477 km (296.4 mi) long German autobahn.

One new section cut through the Hockenheimring, requiring a major redesign of the race track which resulted in the construction of the Motodrom stadium.

Much like its southern counterpart, the A 8, the A 6 is relatively old and has received little upgrading, making it difficult for it to handle today's traffic.

The section around Mannheim is currently being widened and modernised from a four-lane to a six-lane motorway requiring the construction of a new bridge over the River Neckar.

The direct motorway connection between Prague and Paris was completed when the last missing section between junction Amberg-Ost and interchange Oberpfälzer Wald was inaugurated on 10 September 2008.