Numerous modifications were introduced with the Series 3 Alpine. The boot was modified and the fuel tank split into two tanks mounted in each rear wing. The windscreen design was changed as well. Two models were now available. Newly introduced were the GT (Grand Turismo), and ST (Sports Tourer) variations. Series 3's can be identified by the B92 chassis (VIN) number prefix, as well as the tall fins and large open boot. S3's are also the only finned Alpines to have the triangular shaped windows on the leading edge of the doors. With a production number of only 5863 units, this makes the Series 3 the most desirable of the Series Alpines to collectors today.
There are many unique features on the Series 3 that can only be found on this model. The bonnet badge, now a chrome boss with plastic insert is one. The S3 is also the only Alpine to keep a 3.89:1 rear axle ratio for both overdrive and standard 4-speed transmissions, as well as a close ratio gear box. The Series 3 Alpine introduced the GT style interior with wood dashboard and steering wheel, and came with a newly styled hard top, adjustable steering column and adjustable Microcell seats. Production ended in October 1963.