BMW M4 G82/G83 Engines — The Complete UK Guide

“The S58 is widely regarded as one of the strongest inline-six turbocharged units BMW has ever produced. With a closed-deck design, forged crankshaft, and lessons learned from the S55 and B58, it delivers brutal power with surprising tractability. The 530 PS LCI Competition is the sweet spot — more power than the base car, but without the CSL's track-focused compromises.”

Who it's for: buyers who want the definitive modern M4 experience with the best balance of performance and reliability.

“The Competition is the M4 most buyers should choose — 510 PS (pre-LCI) or 530 PS (LCI) is more than enough for road and track. It's available with either rear-wheel drive or the rear-biased M xDrive system, giving you the choice of purist driving or all-weather usability. The CSL's extra 20–40 PS isn't worth the significant price premium for most buyers.”

Who it's for: buyers who want the best all-round M4 without the CSL's track-focused compromises or price tag.

“The CSL's 550 PS calibration pushes the S58 harder than any other variant, with boost pressure increased from 1.7 bar to 2.1 bar. The higher output places additional stress on the turbochargers, fuel system, and cooling system. A full engine replacement on a CSL can exceed £12,000 — the most expensive S58 to repair.”

Who it's for: collectors who want the ultimate G82 M4 and have the budget to maintain it.

“The S58 is generally reliable, but early production cars (2020–2021) may have higher rates of oil consumption between service intervals. Some owners have reported fuel pump and injector issues. The crank hub design was a concern on the S55 but appears less problematic on the S58. However, aftermarket sources suggest excessive kickdowns and high torque loads can still increase the risk.”

Who it's for: buyers who understand that early production cars may require closer monitoring.

“The G83 Convertible is often overlooked in favour of the Coupé, but it offers a unique experience — open-air motoring with 530 PS and xDrive traction. The folding fabric roof adds 145 kg and some structural compromise, but the S58's torque means you won't notice the weight penalty in everyday driving. It's the M4 for buyers who want both performance and the wind-in-the-hair experience.”

Who it's for: buyers who want the M4 experience with the roof down.