Zetta- Zetta- Zetta is a decimal unit prefix in the metric system denoting a factor of 10 or . The prefix was added as an SI prefix to the International System of Units (SI) in 1991 and has the symbol Z. Zetta is evocative of the Latin numeral , meaning "seven". Therefore it was used to denote the seventh power of 1000. A prefix of the same value, "hepta", was informally introduced a few years before the promulgation of zetta. It was formed from the Greek (), also meaning "seven". "Hepta" never received official sanction and is obsolete. Zeta (), although
Nissan EXA Pulsar SSS wheels, build numbers on a badge in the dash and a factory roll cage which was removed after the race. The 1989 GP featured all the same features of the Series 2 EXA. They also had the Pulsar SSS wheels, a more aggressive front bumper, and build numbers on a badge in the dash. All 200 89 GPs made were red. The Series 3 (1990–91) EXA added rear disc brakes, improved seats and optional power windows. The Nissan EXA Solair was a luxury version of the base model that featured power windows, five-spoke alloy wheels, and a different