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BMW Announces The New 2011 BMW 3 Series Coupe and Convertible
The next-generation BMW 3 Series has been announced and is expected to hit the dealerships sometime in 2011 as a 2012 model. The most immediately noticeable change are headlamps, wider grille and new lower front fascia. The rear gets reworked reflectors.
The most significant updates comes under the hood. A much loved twin-turbocharged 3.0-liter inline-six is being replaced by a new single turbo version. The revised engine, dubbed N55, has recently been launched in the 740i and the 535i Gran Turismo. The twin scroll turbo has dual exhaust inlets that allow the engineers to better balance the pulses coming in to spin up the turbine faster. BMW is promising to reduce the turbo lag with this new setup.
BMW also claims it has reduced cold-start emissions by routing all the exhaust gases through a single, larger catalytic converter that heats up faster. On the intake side, the throttle is eliminated thanks to the addition of BMW’s Valvetronic variable valve control system. The N55 also gets direct fuel injection. the final outcome is the same 300 horsepower and 300 pound-feet of torque as before, but with better torque curve from 1,200-5,000 rpm. For more details please read a complete press release.
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