vehicles remaining unsold due to a combination of both the fuel crisis and the rotary engine's early reputation for poor reliability. While the Series I Savanna and RX-3 were powered by the 10A in Japan, Australia, and Europe, North American markets got the larger 12A taken from the RX-2 coupled to either a four speed manual or automatic transmission. Along with this engine change came the chassis prefix S124A. The 1972 Savanna / RX-3 Sports Wagon was the world's first rotary-powered station wagon. In September 1972 the Savanna GT went on sale exclusively in Japan. This model received the larger 12A motor with and was coupled to a five speed transmission. Along with this came slightly lowered suspension, as well as wider 5.5" rims. It received revised tail lights and a 5 Speed badge on the rear, an RE12 badge on the grille, and a completely redesigned dashboard and console exclusive to the model. It also had unique leather-like vinyl upholstery with GT embossed on the headrests. It came also with the chassis code S124A. The 10A engine output was and 100 lb·ft (135 Nm). 0–60 mph (0–97 km/h) acceleration time was 10.8 seconds, and the car ran a 17.6 second quarter-mile (400 m) (versus 16.3 for the RX-2). In 1972 all rotary engines had their die-cast rotor housing coated with a new process: The new Transplant Coating Process (TCP) featured sprayed-on steel which is then coated with chrome, giving greatly increased engine life. Series II & III S102A & 124A (1973–1978) In mid 1973, Mazda released a visually updated Savanna in Japan, though drivetrain choices remained the same with the S102A 10A and the S124A 12A both available in twin distributor form. Externally the entire front end sheet metal was revamped and a different set of taillights with twin brake lights were included (commonly known as Savanna tail lights in Australia). In the months that followed, the range was updated to the single distributor 12A and the 10A motor was discontinued in early 1974. The Series II RX-3 came to Australia in March 1974 powered by the new 12A single distributor (12B). The starter motor was relocated in these updated engines from the top of the engine to the lower left hand rear side. Other internal 12A changes included moving from dual row side seals to single row and significant changes to apex seal design. The Series II was