In October 1967, the British Motor Corporation (BMC) launched the Mk II Series of the Mini. The Cooper versions also had a new profile with a larger rear window and the bigger, angular taillights. The new grille with wide trims was a striking feature that was shared by the Morris Mini-Cooper Mk II and its twin brother Austin Mini-Cooper Mk II. The most important engineering innovation was the introduction of the full synchromesh gearbox for all Mini models in October 1968.