<P> A more powerful Mini Cooper , dubbed the `` S '' , was developed in tandem and released in 1963 . Featuring a 1071 cc engine with a 70.61 mm bore and nitrided steel crankshaft and strengthened bottom end to allow further tuning ; and larger servo - assisted disc brakes , 4,030 Cooper S cars were produced and sold until the model was updated in August 1964 . Cooper also produced two S models specifically for circuit racing in the under 1,000 cc and under 1,300 cc classes respectively , rated at 970 cc ( 59 cu in ) and a 1,275 cc ( 77.8 cu in ) , both had a 70.61 mm ( 2.780 in ) bore and both were also offered to the public . The smaller - engine model was not well received , and only 963 had been built when the model was discontinued in 1965 . The 1,275 cc Cooper S models continued in production until 1971 . </P>
<P> A more powerful Mini Cooper , dubbed the `` S '' , was developed in tandem and released in 1963 . Featuring a 1071 cc engine with a 70.61 mm bore and nitrided steel crankshaft and strengthened bottom end to allow further tuning ; and larger servo - assisted disc brakes , 4,030 Cooper S cars were produced and sold until the model was updated in August 1964 . Cooper also produced two S models specifically for circuit racing in the under 1,000 cc and under 1,300 cc classes respectively , rated at 970 cc ( 59 cu in ) and a 1,275 cc ( 77.8 cu in ) , both had a 70.61 mm ( 2.780 in ) bore and both were also offered to the public . The smaller - engine model was not well received , and only 963 had been built when the model was discontinued in 1965 . The 1,275 cc Cooper S models continued in production until 1971 . </P>
when did the first mini cooper s come out
when did the first mini cooper s come out
1963
1963