Acordin to this article the new 55 AMG engines are suposed to have 571 hp.
It seems to me they are referring to the current 6.3 power output with two levels of boost since it is the only engine referenced in the article.
It will have more than 542 hp (550 PS), but I doubt it will trump the output of the SLS, so it will also be less than 571 hp.True, the SLS 6.6 engine has 571 hp, so we still have to find what hp output has the new 55 AMG engines.

This video intrigues me. The engine is definitely not the 55 Kompressor or the 6.3 V8, but it does have the pops and crackles on the over-run. It's also not as high revving and the sound is quite muffled. Ignore the garbage of this being the 63 BS; this engine IMO could very well be the new Bi-Turbo V8...![]()
This is a common sound of black.
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