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. Designated the BJ8, the 2+2 Mark III was the most powerful and luxurious of the big Healeys, with a standard walnut-veneer dash, wind-up windows, and a 150 hp (112 kW) engine. Added power came from a new camshaft and valve springs, twin SU 2″ HD8 carburetors, and new of exhaust system design. Servo-assisted brakes were also standard. Options remained otherwise the same, except that the standard interior trim was downgraded to Ambla vinyl, with leather extra.
A total of 17,712 Mark IIIs were made.