The X1, BMW's new small crossover vehicle, has numerous features that give a quiet ride. Rieter Automotive Systems and Rieter Textile Systems (two divisions within the Rieter Group of Switzerland) jointly developed a new material for the underbody panels and the under-engine shields. The so-called "Rieter Ultra Silent" can reduce exterior noise levels by 1.5 decibels, a 3 percent decrease compared with standard designs. In addition, the material provides thermal shielding and offers a 45 percent weight savings compared with standard alternatives. Less weight helps reduce fuel consumption and CO2 output, which will help BMW meeting tougher emissions rules that start to take effect in Europe in 2012.
Carcoustics International GmbH provides acoustic insulation for the engine bay and the door systems. In addition, the German supplier provides sealing for the steering wheel column, which helps reduce interior noise.
Faurecia SA, which is owned by BMW engine partner PSA/Peugeot-Citroen SA, makes significant contributions to the X1. The French supplier provides the car's front-end module, complete front seats and side airbags. The seats are produced just-in-time at Faurecia's plant in Leipzig, Germany, which is not far from BMW's assembly plant in the same town.
Several suppliers contribute to the X1's sophisticated powertrain. ZF Friedrichshafen AG of Germany provides the six-speed manual transmission and its second-generation six-speed automatic transmission. The company also provides suspension components, dampers and plastic parts. Meanwhile, ZF Lenksysteme GmbH, a 50-50 joint venture of ZF AG and Robert Bosch GmbH, provides the X1's rack-and-pinion steering system and steering column.
BorgWarner Turbo Systems, a division of BorgWarner Inc., suppliers the X1's regulated two-stage turbocharger. The advantage of this system is that, unlike conventional turbos, it maintains optimum torque and power at low-engine speeds -- even when climbing a hill -- and still maximizes fuel economy when driving at high speeds.
Prices for the X1 start at 27,200 euros ($36,720) in Germany. The sole global production site for the X1 is BMW's Leipzig plant, which is where the automaker produces the three-door, coupe and convertible versions of the 1-series entry-premium car and where the world's largest premium automaker will build its full-electric car. BMW opened the Leipzig plant in 2005, following an investment of approximately 1.3 billion euros.