Initially, the engines offered to Japanese customers were the E15S type (1500 cc straight-four SOHC), and the E15ET type (a turbocharged, fuel injected version of the same), but in August 1986 the CA16DE type (1600 cc straight-four DOHC) was added. Nissan introduced something called the "TWINCAM series" and the "TWINCAM NISMO", this included special suspension and aero parts that offered Japanese customers a customized specification, offering special interior appearances, including power windows that were not available on lower trim packages. In export markets it was mostly sold as the "Sunny Coupé", but export markets generally did not receive the higher trim packages available in Japan.