The 2026 BMW M5 is the pinnacle of the BMW 5 Series lineup; it features a 4.4-liter twin-turbocharged V8, a performance hybrid system, and 717 horsepower total. No other 5 Series variant should be able to match its handling or straight-line performance, and based on the instrumented zero-to-60 mph testing conducted by CarBuzz in 2025, none had up to this point. 2026 may only be a few months in, but it seems the M5 is already facing some stiff competition from with BMW’s own model lineup.
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