New BMW 3 Series includes a new 4-cylinder TwinPower Turbo, 8-speed automatic and start-stop; ActiveHybrid 3 model in 2012
Green Car Congress
OCTOBER 14, 2011
This reduces exhaust back-pressure at low engine rpm, allowing the energy of the exhaust gas pulses to be utilized as efficiently as possible. liter four-cylinder petrol engine family. As far as possible, therefore, power for the vehicle electrical system is generated only during braking and overrun.
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