2021 Lexus NX II (AZ20) 350h (244 Hp) Hybrid AWD e-CVT

The Lexus NX 350h, launched in September 2021 as part of the NX II (AZ20) generation, represents Lexus’s entry into the compact luxury hybrid crossover segment. This model combines a 2.5-liter inline-four gasoline engine with an electric motor system, delivering a total system output of 244 horsepower. Positioned as a mid-range offering within the NX lineup, the 350h aims to balance fuel efficiency, performance, and luxury features, appealing to buyers seeking a sophisticated and environmentally conscious SUV. It quickly became a popular choice, leveraging Lexus’s reputation for reliability and refinement. The 350h utilizes a full hybrid (FHEV) system, meaning it can operate on electric power alone under certain conditions, contributing to reduced emissions and improved fuel economy.

Technical Specifications

Brand Lexus
Model NX
Generation NX II (AZ20)
Type (Engine) 350h (244 Hp) Hybrid AWD e-CVT
Start of production September, 2021
Powertrain Architecture FHEV (Full Hybrid Electric Vehicle)
Body type SUV, Crossover
Seats 5
Doors 5
Combined fuel consumption (WLTP) 5.9-6.4 l/100 km (39.9 – 36.8 US mpg, 47.9 – 44.1 UK mpg, 16.9 – 15.6 km/l)
CO2 emissions (WLTP) 133-146 g/km
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 7.7 sec
Acceleration 0 – 62 mph 7.7 sec
Acceleration 0 – 60 mph 7.3 sec
Maximum speed 200 km/h (124.27 mph)
Emission standard Euro 6d
Weight-to-power ratio 7.3 kg/Hp, 136.3 Hp/tonne
Weight-to-torque ratio 7.5 kg/Nm, 133.5 Nm/tonne
Gross battery capacity 1.6 kWh
Battery voltage 259 V
Battery technology Lithium-ion (Li-Ion)
Battery location Under the rear seats
Electric motor power (Total) 182 Hp + 54 Hp
Electric motor Torque (Total) 270 Nm (199.14 lb.-ft.) + 121 Nm (89.25 lb.-ft.)
Electric motor location Integrated into the transmission (Front), Rear axle, Transverse (Rear)
Electric motor type Synchronous
System power 244 Hp
Power 190 Hp @ 6000 rpm
Torque 239 Nm @ 4300-4500 rpm (176.28 lb.-ft. @ 4300-4500 rpm)
Engine layout Front, Transverse
Engine Model/Code A25A-FXS
Engine displacement 2487 cm3 (151.77 cu. in.)
Number of cylinders 4
Engine configuration Inline
Cylinder Bore 87.5 mm (3.44 in.)
Piston Stroke 103.4 mm (4.07 in.)
Compression ratio 14:1
Number of valves per cylinder 4
Fuel injection system Direct injection and Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Valvetrain DOHC
Engine oil capacity 4.5 l (4.76 US qt | 3.96 UK qt)
Coolant capacity 6.2 l (6.55 US qt | 5.46 UK qt)
Kerb Weight 1790-1870 kg (3946.27 – 4122.64 lbs.)
Max. weight 2380 kg (5247 lbs.)
Max load 510-590 kg (1124.36 – 1300.73 lbs.)
Trunk (boot) space – minimum 545 l (19.25 cu. ft.)
Trunk (boot) space – maximum 1436 l (50.71 cu. ft.)
Fuel tank capacity 55 l (14.53 US gal | 12.1 UK gal)
Permitted trailer load with brakes (12%) 1500 kg (3306.93 lbs.)
Length 4660 mm (183.46 in.)
Width 1865 mm (73.43 in.)
Height 1660-1670 mm (65.35 – 65.75 in.)
Wheelbase 2690 mm (105.91 in.)
Front track 1605 mm (63.19 in.)
Rear (Back) track 1625 mm (63.98 in.)
Front overhang 1007 mm (39.65 in.)
Rear overhang 963 mm (37.91 in.)
Ride height (ground clearance) 185-195 mm (7.28 – 7.68 in.)
Drag coefficient (Cd) 0.34-0.35
Minimum turning circle (turning diameter) 11.6 m (38.06 ft.)
Front brakes Ventilated discs, 328×34 mm
Rear brakes Ventilated discs, 317×18 mm
Front suspension Independent type McPherson
Rear suspension Double wishbone
Gearbox automatic transmission e-CVT

Powertrain & Engine Architecture

The Lexus NX 350h’s powertrain centers around the A25A-FXS 2.5-liter inline-four engine. This engine utilizes a combination of direct injection and multi-port fuel injection to optimize combustion efficiency and reduce emissions. The engine boasts a high compression ratio of 14:1, contributing to its power output. The engine is paired with a sophisticated e-CVT (electronically controlled continuously variable transmission) that seamlessly integrates with the electric motor system. This isn’t a traditional CVT with belts; it’s a power-split device that uses a planetary gearset to combine the output of the engine and electric motors. The electric motor, powered by a small 1.6 kWh lithium-ion battery located under the rear seats, provides additional power and allows for all-electric driving at low speeds and during certain driving conditions. The system intelligently switches between electric, gasoline, and combined power modes to maximize efficiency. The rear electric motor provides on-demand all-wheel drive, enhancing traction and stability.

Driving Characteristics

The NX 350h delivers a smooth and refined driving experience. The e-CVT provides seamless acceleration, without the stepped shifts of a conventional automatic transmission. While the 0-60 mph time of around 7.3 seconds isn’t particularly sporty, the combined output of 244 horsepower provides adequate power for everyday driving and highway merging. Compared to the NX 350 with the turbocharged 2.4-liter engine, the 350h prioritizes fuel efficiency over outright performance. The electric motor provides instant torque, which helps to mask the lack of low-end grunt from the naturally aspirated engine. The all-wheel-drive system provides confident handling in various weather conditions. The regenerative braking system captures energy during deceleration, further enhancing fuel economy.

Equipment & Trim Levels

The NX 350h typically comes well-equipped with standard features such as Lexus Safety System+ 3.0 (including pre-collision system with pedestrian detection, lane departure alert with intelligent steering assist, and dynamic radar cruise control), a 9.8-inch touchscreen display, Apple CarPlay and Android Auto integration, and premium synthetic leather upholstery. Higher trim levels add features like a larger 14-inch touchscreen, a panoramic sunroof, heated and ventilated front seats, a Mark Levinson premium sound system, and triple-beam LED headlights. Optional extras include a head-up display, wireless charging, and a digital rearview mirror.

Chassis & Braking

The NX 350h utilizes a MacPherson strut front suspension and a double-wishbone rear suspension, providing a comfortable and controlled ride. The suspension is tuned to prioritize comfort over sporty handling. Ventilated disc brakes are used on all four wheels, providing ample stopping power. The electronic braking system incorporates ABS (Anti-lock Braking System), Electronic Brake-force Distribution (EBD), and Brake Assist. The vehicle’s relatively low curb weight (around 3946-4123 lbs) contributes to its agile handling.

Market Reception & Comparison

The Lexus NX 350h has been well-received by critics and consumers alike. It’s praised for its fuel efficiency, comfortable ride, and luxurious interior. Compared to other hybrid crossovers in its class, such as the Acura RDX Hybrid and the Volvo XC60 Recharge, the NX 350h offers a compelling combination of value, reliability, and refinement. While its acceleration isn’t as quick as some competitors, its fuel economy is competitive, achieving around 37-41 mpg in combined driving. The Lexus’s reputation for reliability also gives it an edge over some rivals.

Legacy

The Lexus NX 350h represents a significant step forward in Lexus’s hybrid technology. The powertrain is known for its reliability and durability, and the e-CVT transmission has proven to be exceptionally dependable. On the used car market, the NX 350h is expected to hold its value well due to its fuel efficiency, luxury features, and Lexus’s strong brand reputation. The hybrid system’s longevity and relatively low maintenance requirements make it an attractive option for buyers seeking a long-term, environmentally friendly SUV.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top