Quote:
Originally Posted by neo871
I really like the LCI e92 but I look forward to the new M Sport version which should be a lot more aggressive.
What I don't understand is why BMW decided to introduce this N55 engine for 335i and keep the N54 (with some upgrades) for the upcoming 335is. Does anyone else think of this as a strange approach?
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Generally speaking, as much testing as you do it still never the same as the real world testing. My guess is the n54 has already been road tested for the past 3+ years so it's less of a risk to tune that one. Just like the N54 itself is based on the M54 engine and not the newer ones found in NA E9x cars. M54 was a solid unit, tested by the real world so they chose to build upon that.