2006-2009 Lexus LS IV Long 460 L V8 (380 Hp) Super ECT

The Lexus LS 460 L, produced from September 2006 to October 2009, represented the fourth generation of Lexus’ flagship sedan. Positioned as the long-wheelbase variant of the LS IV, it offered increased rear passenger space and enhanced luxury features compared to the standard LS 460. This model played a crucial role in maintaining Lexus’ reputation for refinement, reliability, and technological innovation within the full-size luxury segment, directly competing with vehicles like the BMW 7 Series, Mercedes-Benz S-Class, and Acura RL. The “460 L” designation signified the 4.6-liter engine and the extended wheelbase, offering a more prestigious and comfortable experience.

Technical Specifications

Brand Lexus
Model LS
Generation LS IV Long
Type (Engine) 460 L V8 (380 Hp) Super ECT
Start of production September, 2006
End of production October, 2009
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 4-5
Doors 4
Fuel consumption (economy) – urban (EPA) 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l)
Fuel consumption (economy) – extra urban (EPA) 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l)
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 5.6 sec
Acceleration 0 – 62 mph 5.6 sec
Acceleration 0 – 60 mph 5.4 sec
Maximum speed 210 km/h (130.49 mph), Electronically limited
Emission standard ULEV II
Weight-to-power ratio 5.3 kg/Hp, 187.7 Hp/tonne
Weight-to-torque ratio 4.1 kg/Nm, 245.9 Nm/tonne
Power 380 Hp @ 6400 rpm
Power per litre 82.5 Hp/l
Torque 498 Nm @ 4100 rpm (367.31 lb.-ft. @ 4100 rpm)
Engine layout Front, Longitudinal
Engine Model/Code 1UR-FSE
Engine displacement 4608 cm3 (281.2 cu. in.)
Number of cylinders 8
Engine configuration V-engine
Cylinder Bore 94 mm (3.7 in.)
Piston Stroke 83 mm (3.27 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 8.6 l (9.09 US qt, 7.57 UK qt)
Coolant 11 l (11.62 US qt, 9.68 UK qt)
Kerb Weight 2025 kg (4464.36 lbs.)
Max. weight 2465 kg (5434.39 lbs.)
Max load 440 kg (970.03 lbs.)
Trunk (boot) space – minimum 565 l (19.95 cu. ft.)
Fuel tank capacity 84 l (22.19 US gal, 18.48 UK gal)
Length 5150 mm (202.76 in.)
Width 1875 mm (73.82 in.)
Height 1465-1475 mm (57.68 – 58.07 in.)
Wheelbase 3090 mm (121.65 in.)
Front track 1610-1615 mm (63.39 – 63.58 in.)
Rear (Back) track 1615-1620 mm (63.58 – 63.78 in.)
Ride height (ground clearance) 145 mm (5.71 in.)
Drag coefficient (Cd) 0.26
Minimum turning circle (turning diameter) 11 m (36.09 ft.)
Drivetrain Architecture The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheel Rear wheel drive
Number of gears and type of gearbox 8 gears, automatic transmission Super ECT
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, 333 mm
Rear brakes Ventilated discs, 315 mm
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Electric Steering
Tires size 235/50 R18; 245/45 R19
Wheel rims size 7.5J x 18; 8J x 19

Powertrain & Engine Architecture

The heart of the LS 460 L is the 1UR-FSE 4.6-liter V8 engine. This engine is a naturally aspirated powerplant featuring direct and port fuel injection, a sophisticated Dual VVT-iE (Variable Valve Timing with electric motor) system, and a high 11.8:1 compression ratio. These technologies contribute to both power output and fuel efficiency. The engine produces 380 horsepower at 6400 rpm and 367 lb-ft of torque at 4100 rpm. The “Super ECT” transmission is an 8-speed automatic, designed for smooth and responsive shifting. This transmission was a significant upgrade from the previous 5-speed unit, offering closer gear ratios for improved acceleration and highway cruising. The transmission’s programming prioritized comfort and refinement, typical of the Lexus brand.

Driving Characteristics

The LS 460 L with the 8-speed automatic delivers a driving experience focused on comfort and effortless power. While not as overtly sporty as some of its European rivals, the engine provides ample acceleration, achieving 0-60 mph in around 5.4 seconds. The 8-speed transmission helps keep the engine in its optimal power band, providing smooth and almost imperceptible gear changes. Compared to a manual transmission equipped LS 460 (not commonly offered in the US market), the automatic prioritizes ease of use over outright performance. The long wheelbase contributes to a very stable and comfortable ride, particularly on highway journeys. The steering is light and precise, but lacks the direct feedback favored by driving enthusiasts.

Equipment & Trim Levels

The LS 460 L came standard with a comprehensive list of luxury features, including leather upholstery, wood trim, a premium sound system, navigation system, power-adjustable and heated/ventilated front seats, and a power rear sunshade. Optional extras included a Mark Levinson premium audio system, adaptive cruise control, a rear-seat entertainment system, and an air suspension system that further enhanced ride quality. The long wheelbase model specifically offered more generous rear legroom and often included features geared towards rear passengers, such as individual climate controls and massage functions.

Chassis & Braking

The LS 460 L utilizes an independent multi-link suspension system at both the front and rear. The optional air suspension system, available on higher trim levels, provided adjustable ride height and damping, allowing drivers to tailor the ride to their preferences. Braking duties are handled by ventilated disc brakes on all four wheels, coupled with an Anti-lock Braking System (ABS) and Electronic Brake-force Distribution (EBD). The braking system provides confident stopping power, although the car’s substantial weight requires a reasonable stopping distance.

Market Reception & Comparison

The LS 460 L was generally well-received by automotive critics, praised for its luxurious interior, smooth ride, and quiet cabin. However, some reviewers noted that its driving dynamics were not as engaging as those of its European competitors. Fuel economy, while respectable for a full-size luxury sedan, was not a standout feature. Compared to the standard LS 460, the “L” model offered a significant improvement in rear passenger comfort, making it a popular choice for owners who frequently transported passengers. The 8-speed automatic transmission was lauded for its smoothness and efficiency, contributing to a more refined driving experience than earlier Lexus models.

Legacy

The Lexus LS 460 L has proven to be a remarkably reliable vehicle, with many examples still on the road today. The 1UR-FSE engine is known for its durability and longevity, provided it receives regular maintenance. Common issues are relatively minor, often related to aging sensors or suspension components. On the used car market, the LS 460 L represents a good value proposition for buyers seeking a luxurious and reliable full-size sedan. Its reputation for dependability and relatively low maintenance costs make it an attractive alternative to European luxury cars.

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