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We're pretty excited for the official unveiling of the 2010 Jaguar XJ, and judging from the teaser videos being released by Leaping Cat, Jaguar employees are more psyched than we are. The newest one goes in-depth into why the aluminum structure of the XJ is a marvel of modern engineering. Aluminum is lightweight, of course, giving the new XJ a better power-to-weight ratio than much of its competition, while also delivering class leading fuel economy and CO2 emissions. The video also points out that the XJ's aluminum structure is 85% recyclable, which will make a lot of soda cans one day.

Sure, the current generation XJ has the same aluminum structure, but it's pretty dowdy-looking on the outside and we're hoping the new XJ with its XF-inspired styling makes up for it. Follow the jump to view the newest teaser for yourself, and stay tuned to Autoblog for the XJ's official unveiling on July 9.

[Source: YouTube]