Lexus LS 600h Review: Hybrid Luxury, Performance, Comfort

The Lexus LS 600h stands as a testament to Japanese engineering in the ultra-luxury sedan segment, combining a potent hybrid powertrain with an emphasis on serene comfort and advanced technology. Launched as part of the fourth-generation LS lineup, this full-size flagship aimed to challenge European rivals by offering effortless power, whisper-quiet operation, and opulent rear-seat accommodations. While its hybrid system delivers impressive total output, real-world dynamics reveal a car optimized for chauffeured refinement rather than spirited driving.

Powertrain and Performance Capabilities

At the heart of the LS 600h lies a sophisticated hybrid system pairing a naturally aspirated 5.0-liter V8 gasoline engine with two electric motors. The V8 alone generates 389 horsepower and 385 pound-feet of torque, while the electric components boost the combined system output to 438 horsepower. One motor serves as a generator and starter, and the other powers the rear wheels, augmented by regenerative braking. This setup drives all four wheels through a continuously variable transmission (CVT) with simulated eight-speed manual shifting for a more engaging feel.

Acceleration is respectable for a vehicle weighing over 5,000 pounds. Independent tests clocked the LS 600h L from 0-60 mph in approximately 6.3 to 6.4 seconds, with a quarter-mile time around 14.7 seconds at 100 mph. Top speed is electronically limited to around 130 mph. However, this falls short of non-hybrid LS 460 models, which achieve similar sprints despite less power, highlighting the hybrid system’s added mass impact.

Fuel economy ratings hover at 19 mpg city, 23 mpg highway, and 20 mpg combined per EPA estimates. Real-world testing in mixed conditions yielded about 28 mpg in traffic, though highway runs rarely exceeded official figures. European specs claim around 32.8 mpg combined with 199 g/km CO2 emissions, benefiting from tax incentives for hybrids in some markets.

Chassis Dynamics and Ride Quality

Lexus engineers equipped the LS 600h with adaptive variable air suspension and a multi-link setup featuring progressive rebound springs and stiffened bushings to counter body roll. The Drive Select system offers modes like EV (electric-only), Eco, Comfort, Normal, Sport, and Sport+, allowing tailoring of throttle response, steering weight, and suspension firmness. All-wheel drive via a Torsen center differential ensures secure power delivery, particularly in adverse conditions.

The ride prioritizes isolation, gliding over imperfections like a “magic carpet,” with precise steering from a wood-and-leather wheel. It’s exceptionally quiet, absorbing road noise and vibrations effectively. However, the car’s heft compromises agility; handling feels composed but not athletic, better suited for long-distance cruising than twisty roads. Braking distances are adequate but extend further than some competitors due to mass.

• Key Suspension Features: Adaptive air system adjusts height and damping in real-time.
• Drive Modes Impact: Sport+ sharpens responses but can’t mask the sedan’s size.
• AWD Benefits: Enhances traction without excessive understeer.

Exterior Design and Aerodynamics

The LS 600h’s spindle grille, a Lexus hallmark, gives it a bold, modern face despite roots dating to 2006 with a 2009 facelift. Its slippery shape aids efficiency and quietness. Long wheelbase versions (L models) stretch to limo-like proportions, with 19-inch alloys and subtle luxury cues like chrome accents. While aging compared to sleeker contemporaries, it appeals to traditionalists valuing presence over flash.

Interior Refinement and Comfort

Step inside, and the LS 600h envelops occupants in luxury. Standard fare includes four-zone climate control, LED ambient lighting, premium leather, and wood trim. Front seats offer 16-way power adjustments for the driver (with lumbar and memory), 12-way for passengers, plus heating/ventilation. Rear seats recline with massage, ottomans, and a dedicated refrigerator, making it ideal for executives.

The cabin scores high on build quality and hushness, though the dashboard’s button-heavy layout feels dated, reminiscent of older designs. Trunk space is 10.1 cubic feet, compromised by batteries, but the low liftover aids usability. A massive owner’s manual (over 900 pages) underscores the tech complexity.

Safety and Reliability Ratings

The LS series earned top marks from the Insurance Institute for Highway Safety (IIHS), with “Good” ratings in moderate-overlap frontal crashes and whiplash protection. Standard features include stability control, multiple airbags, and adaptive cruise. Lexus’s reputation for durability shines, backed by a 4-year/50,000-mile warranty. Hybrid components add longevity potential via regenerative tech.

Ownership Costs and Market Position

Base pricing started around $120,000 for long-wheelbase models, positioning it against Bentley Flying Spur or Mercedes S-Class hybrids. Running costs benefit from hybrid tax breaks and solid mpg, though premium fuel and maintenance reflect its status. Resale holds well due to reliability, appealing to fleet buyers and private owners seeking understated luxury.

Pros and Cons at a Glance

Who Should Consider the Lexus LS 600h?

This sedan excels for those prioritizing rear-passenger luxury and low-stress highway travel. Chauffeurs and executives will appreciate the spa-like back seat, while the hybrid badge offers environmental and fiscal perks. Enthusiasts may prefer lighter, sharper rivals like the BMW 7 Series or Porsche Panamera.

Frequently Asked Questions (FAQs)

In summary, the Lexus LS 600h delivers on its promise of hybrid luxury with few peers in comfort and reliability, even if it trades some dynamism for serenity.