Turbos, biturbos, triturbos, superchargers and the rest Which engine charging approach is best?

BMW M4 Performance, Frontansicht Zoom Photo credits:
Photo 9 of 40

The times of specially created M GmbH engines are long gone; they went away with the four-litre V8 in the E90 series. As such, the M4’s S55 engine is based on the N55, taken from the various 35i and 40i versions.

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