As the BMW press release stated that the 35d for US market is not hitting showrooms till January, it is still doing some high altitude testing around Colorado.

Spotter Todd says: "I happened to catch this somewhat disguised X5 (notice the BMW logos are covered on hood, tail and wheels but X5 emblem isn't) at a filling station in Lone Tree, Colo., just south of Denver. Talked briefly with the driver, who was German. He said he had driven cross country from South Carolina for altitude testing here. It is the the turbo-diesel model; he acknowledged the turbo diesel was a good choice for the mountains and that the driving characteristics of the new X5 were a bit different than the current model."















Read more: New 2014 BMW X5 xDrive35d diesel SUV photos; spied during high-altitude testing in Colorado - Autoweek