B48

2.0L Turbo I4

Modular turbo four-cylinder across mainstream BMW models.

B58

3.0L Turbo I6

Single-turbo inline-six powering M Performance models.

N55

3.0L Turbo I6

Predecessor single-turbo inline-six (incl. F87 M2).

S55

3.0L Twin-Turbo I6 (M)

M division twin-turbo six (F80 M3 / F82 M4 / M2 Comp).

S58

3.0L Twin-Turbo I6 (M)

Current M division twin-turbo six (G80 M3 / G82 M4 / G87 M2).