m3 m4

S55 Engine

F80 M3 (2014–2018)S55 engine (3.0L twin-turbo inline-6)

F82 / F83 M4 (2014–2020)S55 engine (3.0L twin-turbo inline-6)

S58 Engine

G80/G81 M3 → S58 engine (3.0L twin-turbo inline-6, next-gen evolution of the B58).

G82 / G83 M4 (2021–present)S58 engine (3.0L twin-turbo inline-6, next-gen evolution of the S55)

S63 Engine

F10 M5 (2011–2016) → S63 (early variant)

F90 M5 (2018–2023) → S63 (updated version with improved cooling & fueling)

F06/F12/F13 M6 (2012–2018) → S63

X5 M (F85, F95) and X6 M (F86, F96) → S63

M8 (F91/F92/F93) → S63

B58 Platform

M140i / M240i → B58 engine (3.0L single twin-scroll turbo inline-6, successor to the N55).

340i / 440i → B58 engine (3.0L single twin-scroll turbo inline-6, smooth, powerful, and highly tunable).

540i / 740i → B58 engine (3.0L single twin-scroll turbo inline-6, refined balance of performance and efficiency).