BMW AG originated with three other manufacturing companies, Rapp Motorenwerke and Bayerische Flugzeugwerke (BFw) in Bavaria, and Fahrzeugfabrik Eisenach in Thuringia. The company is now known as BMW or Bayerische Motoren Werke. Aircraft engine manufacturer Rapp Motorenwerke became Bayerische Motorenwerke in 1916.