The Infiniti Q45 is a full-size luxury car that served as the flagship of Nissan's Infiniti marque from 1990 until 2006, when the Q45 was no longer exported. It is a rear wheel drive luxury sedan powered by a V8 engine. The original Infiniti Q45 was based on the Japanese-market Nissan President (the flagship sedan of Nissan), but later generations were based on the slightly lower-end Nissan Cima. The Q45 competed most directly with the Lexus LS, Acura Legend as well as the slightly higher priced BMW 7 Series, and Mercedes-Benz S-Class.