The fourth and final generation of Austin-Healey Sprite, known as the Mk IV, was introduced in 1966 for the 1967 model year. Cosmetically, the change from a removable convertible top to a fixed folding top is the most notable update, while a new 1.3L inline four engine was used. As the agreement between Austin (now owned by British Leyland) and Healey was coming to an end, the Mk IV Sprite recieved small updates to make the Sprite and its badge engineered sibling, the MG Midget, easier and cheaper to build. After 1969, the Sprite was no longer available in the US, and production would wrap up in 1971. As the collaboration between Austin and Healey had ended, the last thousand examples built were badged as Austin Sprite.