When buying a 135i your main concern won’t be fuel economy but in these days of global warming it will be nice to know BMW reduced CO2 emission by 10% on their new engine for the 135i. The old twin-turbo N54 is being replaced by a single turbo N55 which we reviewed earlier.
The power still stays the same and the torque is actually reached 100 rpm earlier. This aren’t the only changes BMW made to the new 1-series. The 6-step automatic will be replaced by a 7-step double-clutch transmission (DTC) and they finally fixed the paddles on the steering wheel. No longer 2 identical functioning paddles but the left one is to shift down, the right one to shift up, just like it should be (or already should have been from the beginning). The hifi professional system has been replaced by a Kardon Sound Surround system.
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