BMW vehicles have long been the European vehicle of choice when it comes to the fashion conscious and the upwardly mobile. However the brand perception has been hit hard in recent years with words like "brash" and "aggressive" commonly being used when discussing the brand. This, coupled with aggressive marketing from Audi has threatened to knock BMW of the top spot. To counter this BMW have been utilising the latest technology to make their vehicles more energy efficient (BMW Efficient Dynamics) and has been "softening" the styling of their vehicles in subtle ways. The SUV models from BMW, the futuristic sounding X3 and X5 have been a resounding success in America and Europe, with more than 100000 X5's being sold globally since the launch of the X5 in 1999. At long last BMW have got diesels in the SUV line up, with the introduction of the X5 3.0 diesel. Diesels have accounted for almost 50% of SUV sales in Europe and are long overdue in the States. The X5 is a 5/7 seater SUV with car like handling and high performance, favored by keen drivers and motorsports enthusiasts. The X3 is essentially the X5's little brother, a baby X5 with just 5 seats. Always at the forefront of technical innovation, BMW are one of the first companies to have hydrogen powered cars in production, the Hydrogen 7.