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Hybrid Six-Cylinder Engines in 2025: Verified V6 and Inline-Six SUVs

Toyota and Lexus offer documented hybrid V6s for 2025, while BMW and Mazda show why hybrid six-cylinder can also mean an inline-six.
Entry461 Date Time4 min MechanicCarCody Team
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For 2025, Toyota and Lexus document U.S. SUVs with hybrid V6 engines; BMW documents a plug-in hybrid inline-six X5, and Mazda Canada lists a mild-hybrid inline-six CX-90. That is a set of verified examples, not a complete worldwide list of every brand. “Hybrid six-cylinder” includes both V6 and inline-six engines; they are different layouts, and mild, conventional, and plug-in hybrid systems do not offer the same electric-driving capability.

Which automakers offer a hybrid six-cylinder in 2025?

The clearest way to compare the documented examples is by engine layout, hybrid type, market, and what the maker actually publishes. Output figures below are manufacturer-published, not results from a controlled comparison.

Brand and model Engine layout and hybrid system Market and model-year evidence Published figures
Toyota Sequoia Twin-turbo V6; i-FORCE MAX hybrid U.S.; Toyota says every 2025 Sequoia uses this powertrain 437 hp and 583 lb-ft of torque, per Toyota’s 2024 release
Lexus LX 700h Twin-turbo 3.4-liter V6 with hybrid system; nickel-metal-hydride battery and 10-speed automatic U.S.; 2025 model, when hybrid power joined the LX line 457 hp and 583 lb-ft of torque; EPA-estimated 20 mpg combined, per Lexus’s 2024 release
BMW X5 xDrive50e Inline-six gasoline engine with electric motor; plug-in hybrid U.S. lineup context; BMW material supports the configuration, but the cited sources do not establish a model-year-specific 2025 specification 2025-specific figures: not stated in the cited sources
Mazda CX-90 MHEV Turbocharged inline-six with 48-volt M Hybrid Boost mild-hybrid system Canada; Mazda’s 2025 specification sheet Performance or efficiency figures: not stated here

Toyota: Sequoia

Toyota describes a motor-generator positioned between the V6 engine and the 10-speed automatic transmission in the Sequoia’s i-FORCE MAX system. The manufacturer says all 2025 Sequoias use it, rather than limiting the hybrid powertrain to a particular grade. See Toyota’s 2025 Sequoia announcement for its configuration and output figures.

Lexus: LX 700h

The 2025 LX 700h is a luxury off-road SUV with a twin-turbo V6 hybrid setup. Lexus reports its output and an EPA-estimated combined fuel economy figure; that estimate is a different measure from a real-world test and should not be treated as one. The hybrid was new to the LX line for this model year, according to Lexus’s 2025 LX 700h release.

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BMW: X5 xDrive50e

The X5 xDrive50e is the plug-in hybrid example in this group. BMW describes it as pairing an electric motor with a six-cylinder inline gasoline engine, but the cited material does not verify exact U.S. 2025 model-year output or range. BMW’s U.S. plug-in hybrid overview covers the PHEV context; its X5 and X6 announcement describes the inline-six engine. Check a model-year-specific U.S. spec sheet before relying on figures for a particular 2025 vehicle.

Mazda: CX-90 MHEV

Mazda Canada’s 2025 CX-90 MHEV specification sheet identifies a turbocharged inline-six and a 48-volt M Hybrid Boost system. MHEV means mild hybrid: this is not a V6, and it is not the same kind of plug-in arrangement as the BMW. The specification is for Canada, so it does not by itself establish the configuration or availability in other markets. See Mazda Canada’s 2025 CX-90 MHEV specifications.

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Does “hybrid six-cylinder” mean a V6?

No. “Six-cylinder” describes the number of cylinders, while V6 and inline-six describe how they are arranged. Toyota Sequoia and Lexus LX 700h are the V6 examples above. BMW X5 xDrive50e and Mazda CX-90 MHEV use inline-six engines. If you are searching specifically for a hybrid V6, the BMW and Mazda examples do not qualify.

How do the hybrid systems differ?

  • Non-plug-in hybrid: The Toyota and Lexus are described as hybrid vehicles, not plug-in hybrids. Their cited materials do not provide a separate electric-only range figure.
  • Plug-in hybrid (PHEV): The BMW X5 xDrive50e pairs an inline-six with an electric motor. Plug-in capability distinguishes it from the non-plug-in Toyota and Lexus systems; use the exact model-year specifications to check its range and output.
  • Mild hybrid (MHEV): Mazda identifies its CX-90 system as a 48-volt mild hybrid. That label should not be read as equivalent to a plug-in hybrid or as evidence of a published electric-only driving range.

These labels describe different kinds of electrification, so comparing only horsepower or the word “hybrid” can obscure what each system offers. Vehicle purpose also differs: the Sequoia is a large SUV, the LX is a luxury off-road SUV, and the X5 and CX-90 are premium crossovers.

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Is this a complete list of hybrid six-cylinder brands?

No. The documented evidence here covers selected U.S. and Canadian models, not every automaker or market worldwide. Availability and powertrain details can also change by model year. A current model page is not enough on its own to prove a specific 2025 configuration.

For example, Porsche’s current U.S. Cayenne E-Hybrid page describes a 3.0-liter turbo V6 working with an electric motor, including in the E-Hybrid and S E-Hybrid. That page reflects a later model-year presentation, so it is useful for understanding the current configuration but does not confirm a 2025 offering. See Porsche’s current Cayenne E-Hybrid page.

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For buyers, the practical check is to confirm the exact model year, market, and trim on the automaker’s specification sheet, then distinguish a V6 from an inline-six and a mild hybrid from a plug-in system.

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