Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. ATTESA (acronym for Advanced Total Traction Engineering System for All-Terrain) is a four-wheel drive used in some automobiles produced by the Japanese automaker Nissan. The ''mechanical'' ATTESA system was developed for transverse layout vehicles and introduced with the RNU12 Bluebird in the Japanese market, entering production in September 1987. The system ran right throughout the U12 series (RNU12/HNU12) and was fitted to numerous U12 models with differing engine and gearbox combinations. An almost identical system is fitted to the RNN14 GTi-R Pulsar and the HNU13 Bluebird and the HNP10 Primera, finding usage in numerous other nissan models.