The new second-generation BMW 1 series is the first model in its class to offer an optional eight-speed automatic transmission. ZF Friedrichshafen AG suppliers the gearbox, which features steering-wheel-mounted shift paddles. ZF also provides the 1 series' six-speed manual transmission plus chassis and electronic components in the car. Getrag Group of Germany supplies a manual transmission to the 1 series and the dual-clutch transmission in the BMW 135i.
The new 1 series is available from launch with a range of four-cylinder gasoline and diesel engines. The compact car's new 1.6-liter gasoline powerplants are fitted with waste gate twin-scroll turbochargers from Honeywell International Inc.
The new car's driving performance is further enhanced by an electromechanical power steering system that the automaker says offers a precision feel with no interference from the drivetrain. The electromechanical power steering (EPS) and steering column are supplied by ThyssenKrupp AG. The German partsmaker is also responsible for supplying the 1 series with the front and rear axles, assembled camshafts, assembled eccentric shafts, as well as the crankshaft that features in the 2.0-liter diesel.
The new model is 83mm longer and 14mm wider than the car it replaces. Its wheelbase also has been lengthened by 30mm. All the upgrades were made to improve interior space. BMW produces the 1 series on its L7 platform. IHS Automotive forecasts that overall output for the 1-series model line will peak at 237,000 in 2013, up from a forecast of 182,000 unit in 2011.
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