November’s Los Angeles Auto Show will play host to three world premieres from Nissan, including the debut of one mysterious new sedan.

Dubbed the Ellure concept, Nissan says the “dramatic” sedan will add “a new dimension to the traditional sedan design”, that new dimension being “innovation”.

Nissan has revealed no further details about the sedan which will be unveiled on November 17, but some are already speculating it could be related to the Infiniti Essence hybrid coupe concept which made its debut at the 2009 Geneva Motor Show.

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Two other vehicles will make their debuts alongside the Ellure at Los Angeles under Nissan’s “Innovation For All” slogan, with the Murano CrossCabriolet and the Quest minivan to appear for the first time before they hit US showrooms in early 2011.

Nissan says the Murano CrossCabriolet will become the world’s first all-wheel drive convertible crossover and will offer room for four adults and four golf bags with the top down.