The Lexus LS 600h V8 (445 Hp) Hybrid AWD e-CVT, produced from July 2007 to October 2009, represents the fourth generation (LS IV) of Lexus’ flagship sedan. This model marked Lexus’ significant foray into hybrid technology within the luxury segment, aiming to combine the refinement expected of an LS with improved fuel efficiency. Positioned as the top-of-the-line LS variant, it offered a sophisticated blend of power, luxury, and advanced technology. The 600h utilized Lexus’ Hybrid Synergy Drive system, pairing a V8 gasoline engine with an electric motor to deliver all-wheel drive capability and a unique driving experience. It was primarily marketed in North America, Japan, and select European markets where luxury hybrid sedans were gaining traction.
Technical Specifications
| Brand | Lexus |
| Model | LS |
| Generation | LS IV |
| Type (Engine) | 600h V8 (445 Hp) Hybrid AWD e-CVT |
| Start of production | July, 2007 |
| End of production | October, 2009 |
| Powertrain Architecture | FHEV (Full Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban (NEDC) | 11.3 l/100 km (20.8 US mpg, 25 UK mpg, 8.8 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 8 l/100 km (29.4 US mpg, 35.3 UK mpg, 12.5 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 9.3 l/100 km (25.3 US mpg, 30.4 UK mpg, 10.8 km/l) |
| CO2 emissions (NEDC) | 219 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.3 sec |
| Acceleration 0 – 62 mph | 6.3 sec |
| Acceleration 0 – 60 mph | 6 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 5.1 kg/Hp, 196 Hp/tonne |
| Weight-to-torque ratio | 4.4 kg/Nm, 229.1 Nm/tonne |
| Battery voltage | 288 V |
| Battery technology | Nickel-metal hydride (NiMH) |
| Battery weight | 67 kg (147.71 lbs.) |
| Battery location | Inside the trunk |
| All-electric range (NEDC) | 3 km (1.86 mi) |
| Electric motor power | 224 Hp |
| Electric motor Torque | 300 Nm (221.27 lb.-ft.) |
| Electric motor location | Integrated into the transmission |
| Electric motor type | Synchronous |
| System power | 445 Hp |
| Power | 394 Hp @ 6400 rpm |
| Torque | 520 Nm @ 4000 rpm (383.53 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 2UR-FSE |
| Engine displacement | 4969 cm3 (303.23 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 94 mm (3.7 in.) |
| Piston Stroke | 89.5 mm (3.52 in.) |
| Compression ratio | 11.8:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection and Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, Dual VVT-iE |
| Engine oil capacity | 9 l (9.51 US qt | 7.92 UK qt) |
| Coolant | 11.1 l (11.73 US qt | 9.77 UK qt) |
| Kerb Weight | 2270-2355 kg (5004.49 – 5191.89 lbs.) |
| Max. weight | 2730 kg (6018.62 lbs.) |
| Max load | 375-460 kg (826.73 – 1014.13 lbs.) |
| Trunk (boot) space – minimum | 420 l (14.83 cu. ft.) |
| Fuel tank capacity | 84 l (22.19 US gal | 18.48 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 5030 mm (198.03 in.) |
| Width | 1875 mm (73.82 in.) |
| Height | 1465-1475 mm (57.68 – 58.07 in.) |
| Wheelbase | 2970 mm (116.93 in.) |
| Front track | 1615 mm (63.58 in.) |
| Rear (Back) track | 1620 mm (63.78 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle (turning diameter) | 12.2 m (40.03 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) and the electric motor permanently drive the four wheels of the car with the ability to work in full electric or mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | automatic transmission e-CVT |
| Front suspension | Independent multi-link suspension, Transverse stabilizer, Air Suspension – Optional |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer, Air Suspension – Optional |
| Front brakes | Ventilated discs, 358 mm |
| Rear brakes | Ventilated discs, 335 mm |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/45 R19 |
| Wheel rims size | 8J x 19 |
Powertrain & Engine Architecture
The heart of the LS 600h is the 2UR-FSE 4.6-liter V8 engine. This engine utilizes D-4S direct injection and Multi-port fuel injection, along with Dual VVT-iE (Variable Valve Timing with electric motor) to optimize combustion efficiency and power delivery. The engine produces 394 horsepower at 6400 rpm and 383.53 lb-ft of torque at 4000 rpm. Paired with this is a 224-horsepower electric motor, bringing the total system output to 445 horsepower. The electric motor is integrated into the transmission and utilizes a synchronous motor design. The Lexus Hybrid Synergy Drive system, a full hybrid (FHEV) architecture, seamlessly blends power from both sources. The e-CVT (electronically controlled continuously variable transmission) doesn’t have fixed gears; instead, it uses a planetary gearset to continuously adjust the gear ratio, optimizing for efficiency or performance. The 288V Nickel-metal hydride (NiMH) battery pack is located in the trunk, providing energy for the electric motor and enabling a limited all-electric range of approximately 1.86 miles.
Driving Characteristics
The LS 600h offers a distinctly smooth and refined driving experience. The e-CVT contributes to seamless acceleration, lacking the noticeable gear changes of a traditional automatic transmission. While the 6.3-second 0-60 mph acceleration is respectable for a large luxury sedan, it doesn’t feel overtly sporty. The focus is more on effortless cruising and quiet operation. The all-wheel-drive system provides enhanced traction in various weather conditions. Compared to the standard LS 460, the 600h prioritizes fuel economy and reduced emissions over outright performance. The added weight of the hybrid components does slightly impact handling agility compared to lighter LS models.
Equipment & Trim Levels
The LS 600h was typically equipped with a comprehensive list of standard features befitting a flagship Lexus model. These included leather upholstery, wood trim, a premium sound system, navigation system, power-adjustable and heated/ventilated front seats, and a rear-seat entertainment system. Optional extras included features like massaging seats, a Mark Levinson audio system, and adaptive cruise control. The interior design emphasized luxury and comfort, with a focus on high-quality materials and meticulous craftsmanship. Trim levels were relatively limited, with most customization options available through individual selections rather than distinct packages.
Chassis & Braking
The LS 600h features an independent multi-link suspension system at both the front and rear, designed to provide a comfortable ride and controlled handling. Air suspension was available as an option, further enhancing ride quality. Braking duties are handled by ventilated discs on all four wheels, measuring 358mm at the front and 335mm at the rear. The vehicle is equipped with ABS (Anti-lock braking system) and electronic brake-force distribution. The suspension tuning was optimized to accommodate the added weight of the hybrid system and maintain a balanced driving experience.
Market Reception & Comparison
The LS 600h was generally well-received by critics, who praised its smooth ride, quiet cabin, and fuel efficiency for a vehicle of its size and class. However, some reviewers noted that the hybrid system added significant weight, impacting handling and overall driving dynamics. Compared to the LS 460 (with the standard V8 engine), the 600h offered improved fuel economy but came at a higher price point. Against competitors like the BMW 7 Series Hybrid and Porsche Panamera Hybrid, the LS 600h offered a compelling combination of luxury, reliability, and fuel efficiency, though it often lagged behind in terms of outright performance.
Legacy
The Lexus LS 600h V8 Hybrid represented a significant step forward for Lexus in hybrid technology. While the first generation had some early issues with battery life, later revisions proved to be relatively reliable. On the used car market, the LS 600h remains a desirable option for buyers seeking a luxurious and fuel-efficient sedan. The hybrid powertrain, while complex, has demonstrated reasonable long-term durability. However, potential buyers should be aware of the higher maintenance costs associated with the hybrid system compared to conventional gasoline-powered vehicles. The LS 600h paved the way for Lexus’ continued development of hybrid technology and its expansion into other models within the lineup.
