Thursday, December 16, 2010

2012 BMW 1-Series Convertible pics

2012 BMW 1-Series Convertible
The 2012 BMW 135i features BMW's newest, 3.0-liter inline-6 engine. Equipped with a single, twin-scroll turbocharger and BMW's revolutionary Valvetronic throttle-less intake technology, the engine produces 300 horsepower and 300 lb-ft of torque. Refered to internally as the "N55", the engine reaches peak torque at 1,200 rpm and maintains peak torque all the way to 5,000 rpm. With High Precision direct gasoline injectors, optimum performance and fuel efficiency are achieved with even faster engine response across the entire engine speed range. For the 135i Convertible, acceleration from 0-60 mph is accomplished with the standard 6-speed manual transmission in 5.4 seconds.

The 135i can be equipped with BMW's 7-speed Double Clutch Transmission (DCT), as featured on the BMW Z4 Roadster. Equipped with DCT, the 135i Convertible will accomplish the 0-60 mph sprint in a scorching 5.3 seconds. A 6-speed Steptronic automatic remains o ptional on the 128i. So equipped, the 128i Convertible runs 0-60 mph in 7.0 seconds, or 6.4 seconds with the standard 6-speed manual transmission.

Innovative Aerodynamics: Air Curtains

Consistency between form and function is crucial to engineers at BMW who seek perfect balance of various aerodynamic factors in the wind tunnel. As a result, the new Air Curtain is BMW's latest aerodynamic innovation. Introduced first on the BMW 1-Series M Coupe, the Air Curtain will now be a standard feature on the 128i Convertible. The Air Curtain improves air flow around the front wheel arches with the benefit of significantly reduced turbulence. The 128i Convertible can also be equipped with special Aero Wheels to further enhance the performance of the Air Curtain system.

This innovative feature consists of openings in the outer section of the lower front fascia that route high-pressure air through ducts at each front corner. The ducts are approximately 10 x 3 centimeters wide and are designed to channel air to openings at the front of each wheel arch, where it is discharged through a very narrow opening at high speed. The escaping air stream covers the side of the front wheels like a curtain, thereby reducing aerodynamically unfavorable turbulence around the rotating wheels.

Air Curtain has a key role to play in the development of future aerodynamic innovations. An example of the air curtain principle was first presented in the concept study BMW Vision EfficientDynamics at the International Motor Show (IAA) in Frankfurt in 2009, and the developers of the BMW 1-Series M Coupe took on the pioneering task of applying this element to a production vehicle. To do so, they utilized the unique capabilities of the new full-scale "rolling road" Aerolab wind tunnel at the BMW Group's new Aerodynamic Testing Center. Now it has been added to the 128i Convertible.
2012 BMW 1-Series Convertible
2012 BMW 1-Series Convertible
2012 BMW 1-Series Convertible
2012 BMW 1-Series Convertible

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