Complex sentence: The 3000 Mark III was launched in October 1963, and remained in production until the end of 1967 when production of Austin-Healeys ceased-one further car was built in March 1968.
Split into simpler sentences: The 3000 Mark III was launched in October 1963, and remained in production until the end of 1967, when manufacture of Austin-Healeys ceased. Only one further car was built in March 1968.