The Maza Atenza or Mazda 6 is a mid-size car produced by the Japanese car manufacturer Mazda since 2002. The name Atenza is used only in Japan with the Mazda 6 moniker used everywhere else in the world. The Atenza/Mazda 6 replaced the Capella/626, and has sold over one million units worldwide since its introduction, meaning it reached the one million mark faster than any previous Mazda.