Quote:
Originally Posted by CanAutM3
Quote:
Originally Posted by Dog Face Pony Soldier
I'm actually surprised BMW doesn't put them on US vehicles anyway. I recall BMW saying they were going to adhere to the higher fuel efficiency mandates even after the US claws back the severity of the regulation.
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Even if they are related, fuel efficiency and emissions are two different things.
OPF improve emissions but worsens fuel consumption. |
I'm still surprised. Why different approaches?