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Originally Posted by bquatt
I guess the A is in the 320, which they stated has weak pistons. They mentioned that the B in the 330 is “perfect”. Take that for what’s it worth!
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I think the b48b20a is in the 330e and the b48b20b is in the non electric cars? I have no idea honestly.
Did some digging and found out that the American cars (b46) are basically just the b48 with a different tune for emission regulations. Mechanically it’s the same.
Also, they state 320 safely but the Russian car in the IG post makes almost 340bhp.