The Eunos Cosmo (loosely based on the 1985 MX-03 concept car) started production in 1990 on the new JC platform. The Eunos Cosmo was the top-line touring flagship of the Eunos luxury channel. It is the only Mazda to use a triple-rotor engine. The car was a 2+2 coupe and was loaded with power amenities. Following the Japanese luxury theme, only an electronically controlled 4-speed automatic transmission was available.
Two engines were available, the twin turbo 13B-RE and the 20B-REW. The triple rotor 20B had 2 Litres (1962 cc) of displacement, making it the largest capacity rotary offered for sale by Mazda. It produced 300 horsepower (220 kW) and 403 newton metres (297 lb-ft) with twin turbochargers. The JC series Cosmo set several firsts in Automotive history. Its 13B-RE and 20B-REW engines were the first Japanese built, series production twin sequential turbo systems to be offered for sale on a rotary engined car. The internationally known FD series RX-7 didn’t receive the twin turbo 13B-REW engine until early 1992. The Eunos Cosmo was the first production car in the world to get built-in GPS navigation system, and the first in Japan to use the “Palmnet” serial data communication system for ECU-to-ECAT operation.
