Quote:
Originally Posted by LoneStar
base engine + aggregates and other components intake/outtake and so on. 2 cylinders more needs larger and heavier components.
As I said, I drive a 220i and M240i convertible side by side and measured weight is around 80kg more (M240i has sport brakes).
Just checked it:
220i convertible, 2019, M exterieur: 1681 kg
M240i convertible, 2021: 1754 kg, further extras: comfort access, foldable mirrors, Harman Kardon, that's it
From a driving perspective, the car feels far heavier than only this difference, especially in the front, without any doubt. Handling is not comparable.
While accelerating, this truth is the other way around;-)
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There absolutely will be a difference in handling, I'm not contradicting the difference you feel.
I'm only saying you're incorrectly assuming that the entire weight difference is going straight to the front of the car. Out of that 73kg difference you have between the 220i and 240i the engine maybe accounts for 30kg, the rest likely has to do with the other M Performance goodies the car gets plus the options you mentioned.
You're not feeling a 73 kg deficit on the front of the car, you're feeling less.
Also, about aggregates and other components - it's the other way around. A larger engine (given the same piston arrangement) will be proportionally more weight-efficient per unit of CC because while some components like the block may be proportionally heavier (not a given though), other components will be the same (for example the alternator doesn't have to be bigger) or maybe even slightly lighter (engine may have a smaller turbo).
That's why in the example I gave earlier I mentioned the VAG 2.0 TSI engine weighing in at 130kg while the much smaller 1.2 TSI is 97kg. The 2.0 engine is 66% larger but only 34% heavier.