In three years after their first introduction the K series engines produced by Maruti have found their way into ten lakh cars.  The K series was originally introduced in the A Star (Alto for export markets and also Pixo for Nissan) as the K10B and subsequently in the Swift and Ritz as the K12M.  The K10B also does duty in the Alto K10, the Estilo and the Wagon R and garners most of the volumes for Maruti.