Mazda Savanna RX-7 Infini

The Series 4 (produced from 1986–1988) was available with a naturally aspirated, fuel injected 13B-VDEI producing 148 PS (109 kW) in North American spec. An optional turbocharged model, known as the Turbo II in the American market, was rated at 182 hp (136 kW). The Series 5 (1989–1992) featured updated styling and better engine management, as well as lighter rotors and a higher compression ratio 9.7:1 for the naturally aspirated model, and 9.0:1 for the turbo model. The naturally aspirated Series 5 FC was rated at 162 PS (119 kW), while the Series 5 Turbo was rated at 203 PS (149 kW) at 6,500 rpm and 265 N⋅m (195 lb⋅ft) of torque at 3,500 rpm.

The second generation of the RX-7 ("FC", VIN begins JM1FC3 or JMZFC1), still known as the Mazda Savanna RX-7 in Japan, featured a complete restyling which was reminiscent of the Porsche 924 and 944. Mazda's stylists, led by Chief Project Engineer Akio Uchiyama, focused on the Porsche 924 for their inspiration in designing the FC because the new car was being designed primarily for the American market, where the majority of first-generation of the RX-7 models had been sold.

This strategy was chosen after Uchiyama and others on the design team spent time in the United States studying owners of the earlier RX-7s and other sports cars popular in the American market. The Porsche 944 was selling particularly well at the time and provided clues as to what sports-car enthusiasts might find compelling in future RX-7 styling and equipment.