The mark 3 Mini is introduced in 1969, offering wind-up windows, internal hinges and dry suspension among many changes. Austin and Morris tags dropped in favour of plain Mini. Mini production reaches 2,000,000. The Italian Job is released in cinemas, using Mk1 Cooper S Mini's, bringing the Mini even more fame and popularity. Alec Issigonis is knighted for his services to the motor industry. The 998 Cooper is dropped.

In 1970, the mark 3 Cooper 1275S is introduced, to be the last ever "S". In BL's final full works entry, Paddy Hopkirk takes a 1275GT to second place on the Scottish Rally.

In 1971, the Cooper name is dropped and the S discontinued. Mini has its best year for sales figures at 318,000. Issigonis retires from BL. Hydrolastic suspension is retired also.

In 1973, alternator replaces dynamo across the range. The magic wand gearchange disappears from the 850 and is discontinued.

In 1974, inertia reel seatbelts become standard across the range and 850 drivers get a heater at no extra cost. The Bertone-styled Innocenti Mini appears from Italy, based on Mini's platform and running gear. It comes from the same firm which built Minis and kept the Cooper in production for three years after BL stopped.

In 1976, the mark 4 Mini is introduced.