2024 Lexus GX 550: Boxy is Beautiful

The 2024 Lexus GX 550 represents the most significant update to the GX nameplate in nearly 15 years. Lexus has moved away from the softer, rounded aesthetics of the previous generation to embrace a distinctively square, rugged design that targets off-road enthusiasts and luxury buyers alike. This review breaks down the shift from the V8 to the new twin-turbo V6 and examines how the new Overtrail trims handle the beaten path.

The Twin-Turbo V6: More Power, Less Cylinders

For over a decade, the Lexus GX was defined by its naturally aspirated V8 engine. The 2024 model completely abandons that powertrain in favor of a modern 3.4-liter twin-turbo V6. While some purists might lament the loss of the V8 rumble, the performance metrics show a clear upgrade.

Horsepower and Torque Gains

The new twin-turbo V6 produces 349 horsepower and a massive 479 lb-ft of torque. When you compare this to the outgoing 4.6-liter V8, the difference is stark. The old V8 managed 301 horsepower and only 329 lb-ft of torque.

This means the 2024 GX 550 offers:

  • 48 more horsepower than the 2023 model.
  • 150 lb-ft more torque, which is critical for towing and off-road crawling.

Transmission and Drivetrain

Lexus paired this new engine with a 10-speed Direct-Shift automatic transmission. This replaces the aging 6-speed automatic found in previous years. The result is smoother shifting and better power band management, whether you are merging onto a highway or climbing a steep grade. Full-time four-wheel drive is standard across all trims, featuring a Torsen limited-slip center differential with a locking feature.

Rugged Redesign: The "Boxy" Aesthetic

The visual transformation of the GX 550 is aggressive. It sits on the GA-F platform, which is the same body-on-frame architecture used by the larger Lexus LX 600 and the Toyota Land Cruiser.

Exterior Dimensions and Visibility

The design team prioritized visibility and trail clearance. The A-pillars are pulled back, and the windshield stands more upright. The beltline is lower, which allows for larger windows and better sightlines for the driver.

  • Width: The standard GX is 3.74 inches wider than the previous generation.
  • Wheelbase: The wheelbase has increased by 2.36 inches, improving stability.
  • Overhang: The front overhang has been decreased by 0.78 inches to improve the approach angle for off-roading.

The “boxy” look is not just for show. The square corners help drivers place the vehicle more accurately on tight trails, as you can clearly see where the hood ends.

Introducing the Overtrail Grade

Lexus is directly targeting the “overlanding” community with the introduction of the Overtrail and Overtrail+ trims. These are not just appearance packages; they include mechanical hardware designed for rough terrain.

Key Off-Road Features

If you opt for the Overtrail grade, you gain several specific enhancements:

  • 33-inch Tires: It comes stock with 33-inch Toyo Open Country A/T tires mounted on 18-inch wheels. These provide more sidewall cushion for airing down on rocks or sand.
  • E-KDSS: The Electronic Kinetic Dynamic Suspension System allows the stabilizer bars to lock and unlock automatically. This provides flat cornering on pavement but allows for massive wheel articulation when off-road.
  • Locking Rear Differential: This is exclusive to the Overtrail trims and is essential for maintaining traction on loose surfaces like mud or gravel.
  • Multi-Terrain Select (MTS): This system adjusts wheel spin and brake pressure based on the surface, with modes for Dirt, Sand, Mud, Deep Snow, and Rock.

Interior Technology and Towing Capacity

The interior has been modernized to match current luxury standards while keeping physical controls for essential functions.

Cabin Tech

The center stack is dominated by a 14-inch multimedia touchscreen. Thankfully, Lexus retained physical dials for the climate control and volume, addressing a common complaint about touch-only interfaces. The driver also gets a 12.3-inch digital instrument cluster that changes layouts depending on the drive mode selected.

Seating Configurations

  • Premium and Luxury Trims: These come standard with three rows of seating. You can choose between a second-row bench (seating for 7) or captain’s chairs (seating for 6).
  • Overtrail Trims: These are strictly two-row vehicles, seating a maximum of 5 people. The deletion of the third row maximizes cargo space for camping gear and equipment.

Towing Capability

The switch to the twin-turbo V6 has also bolstered towing numbers. The 2024 GX 550 Premium, Premium+, and Overtrail trims are rated to tow up to 8,000 pounds. This makes it a capable hauler for boats, horse trailers, or camper vans, surpassing many crossover competitors in the midsize luxury segment.

Pricing and Availability

The 2024 Lexus GX 550 is positioned as a premium product. The base Premium trim starts at approximately $64,250.

For those interested in the off-road specific models:

  • GX 550 Overtrail: Starts around $69,250.
  • GX 550 Overtrail+: Starts around $77,250.

The top-tier Luxury+ trim, which focuses on on-road comfort and features like the Mark Levinson sound system and dynamic sky panorama glass roof, can push the price over $81,000.

Frequently Asked Questions

Does the 2024 Lexus GX 550 require premium gas? Yes, to achieve the rated 349 horsepower and 479 lb-ft of torque, premium 91-octane fuel is required for the twin-turbo V6 engine.

What is the fuel economy of the new GX 550? The EPA estimates for the 2024 GX 550 are 15 mpg in the city, 21 mpg on the highway, and 17 mpg combined. This is a slight improvement over the previous V8 model but reflects the vehicle’s boxy shape and heavy curb weight.

Is the third row usable for adults? The third row in the Premium and Luxury trims is best suited for children or smaller adults for short trips. Access is easier thanks to a one-motion tumble system for the second row, but legroom remains tight in the very back.

Does the rear window still open separately? Yes, Lexus kept the signature pop-out rear glass hatch. This allows you to access the cargo area without opening the entire swing-out tailgate, which is helpful if you have a trailer attached or are parked in a tight space.