Lexus appears to be preparing a hybrid version of its GX550 luxury SUV, signaling a potential shift toward improved fuel efficiency as global fuel costs remain elevated.
Recent trademark filings for the name “GX550h,” first reported by CarBuzz, point to the development of a more efficient variant of the off-road-focused model. While the automaker has not officially confirmed the project, the “h” designation aligns with Lexus’ established naming convention for hybrid vehicles rather than performance-oriented trims.
Car and Driver, which initially uncovered the trademark filing, has contacted Lexus for comment but has yet to receive a response.
The current GX550 is built on the same platform as the Toyota Land Cruiser and is powered by a twin-turbocharged 3.4-liter V6 engine producing 349 horsepower and 479 lb-ft of torque. By comparison, the Land Cruiser features a hybrid-assisted powertrain built around a turbocharged 2.4-liter four-cylinder engine, generating 326 horsepower and 465 lb-ft of torque.
Industry analysts suggest Lexus has several potential directions for a GX550h. One possibility is adopting a more powerful hybrid setup similar to the LX700h, which combines a tuned 3.4-liter V6 with an electric motor to deliver up to 457 horsepower. Such an approach would elevate the GX’s performance credentials and position it more directly against rivals like the Land Rover Defender V8.
However, the “550h” badge more likely indicates a focus on efficiency rather than outright performance gains. Experts expect Lexus could integrate a hybrid system closer to the Land Cruiser’s setup or another fuel-saving configuration that preserves the GX’s current performance while improving range and fuel economy. A modest increase in output remains possible to differentiate it from its Toyota counterpart.
Lexus has not disclosed a timeline for the GX550h, though industry expectations suggest a potential launch within the next one to two years.
