BMW is adjusting the output of its 4.4-liter twin-turbo V8 engine, found in the M5 and XM models, to comply with upcoming Euro 7 emissions regulations set to take effect in Europe by November 2026. This shift highlights the growing pressure on automakers to adapt to stricter environmental rules, even for high-performance vehicles.
Power Adjustment Details
The V8 in the M5 will see its power reduced from 430kW (576hp) to 400kW (536hp). However, BMW will offset this decrease by boosting the output of the integrated electric motor, ensuring that the overall hybrid system maintains a combined output of 535kW (717hp). The change relies on implementing the Miller Cycle combustion process, which improves fuel efficiency and lowers emissions.
Impact on Other Models
The BMW XM SUV will also undergo similar adjustments, adopting the Miller Cycle to meet Euro 7 standards. While specific power reductions haven’t been disclosed, BMW confirms the SUV’s combined hybrid output will remain at 550kW (738hp).
Regional Differences
Currently, these changes are limited to European models produced from March 2026 (M5) and April 2026 (XM). BMW Australia confirms no immediate plans to modify showroom models, as Australia will adopt Euro 6d-equivalent regulations in December 2025, differing from the more stringent Euro 7 standards.
Broader Industry Trends
This move aligns with broader industry trends, as Mercedes-Benz is also developing an electrified next-generation V8 for future models like the S-Class and CLE63 AMG. The decision by BMW to retain V8 engines – after previous considerations to phase them out – was influenced by sustained demand in markets like North America, where high-performance vehicles remain popular.
The shift toward hybrid systems in high-performance engines is a direct response to tightening emissions regulations, ensuring manufacturers can continue offering powerful vehicles while meeting environmental standards.
The transition demonstrates that automakers are actively adapting to stricter regulations by leveraging hybrid technology and combustion efficiency improvements, rather than entirely abandoning high-performance engines.
