All-electric crossover model will debut ahead of its appearance at the Detroit auto show next January.

Tesla is moving the development of a crossover model and will be introducing the Model X before the end of the year.

The Model X will be a seven-seat crossover/SUV based on the Model S sedan, which itself actually seats seven, with two rear-facing seats under the hatch.

"The time is right to unveil the car," Tesla CEO Elon Musk told Autocar. "I've seen the latest design for it and I'm very happy with it."

The Model X will make its media release at the end of this year while the first motor show appearance will happen at the 2012 Detroit auto show in January. It is scheduled to go to production in 2013 at Tesla's plant in Fremont, California where the Model S will also be built.

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