Should You Choose the 2025 Lexus RX 350h or RX 500h?

Both RX hybrids deliver efficiency and all-wheel drive for Ontario winters, but they're designed for different priorities. The RX 350h focuses on fuel economy with 246 system horsepower and a combined rating of 6.5 L/100 km. The RX 500h emphasizes performance with 367 system horsepower, DIRECT4 AWD, and dynamic handling features. Understanding how these powertrains and technologies differ helps you select the right RX for your driving style.

Each model uses a self-charging hybrid system—no plugs required. The battery recharges through regenerative braking and the gasoline engine, so you fill the tank and drive. Both offer standard Lexus Safety System+ 3.0, premium cabin materials, and the Lexus Interface with a 14-inch touchscreen.

At a Glance: RX 350h vs RX 500h

Performance and Efficiency: How the Powertrains Compare

The RX 350h pairs a 2.5 L 4-cylinder engine with electric motors through an electronically-controlled continuously variable transmission (eCVT). This setup produces 246 system horsepower at 6000 RPM and delivers smooth, responsive acceleration suitable for daily commuting and highway merging. Fuel economy is rated at 6.3 L/100 km city, 6.8 L/100 km highway, and 6.5 L/100 km combined.

The RX 500h uses a 2.4 L turbocharged 4-cylinder engine integrated with a high-output electric motor, inverter, and reduction gearbox. This one-motor hybrid system produces 367 system horsepower at 6000 RPM and up to 406 lb-ft of torque. The six-speed automatic transmission with sequential shift mode provides quicker acceleration at all speeds. Fuel economy is rated at 8.7 L/100 km city, 8.4 L/100 km highway, and 8.6 L/100 km combined.

The RX 350h prioritizes efficiency for daily driving. The RX 500h adds turbocharged power for passing, merging, and more engaged driving. Both deliver enough capability for Ontario highway travel and winter conditions, but the RX 500h provides noticeably stronger acceleration.

AWD Systems: Standard vs DIRECT4

Both models include all-wheel drive as standard, but the systems differ in design and function.

The RX 350h uses a traditional electronically-controlled AWD system that distributes power between the front and rear wheels based on traction needs. It handles rain, snow, and ice effectively for everyday driving.

The RX 500h features the Lexus DIRECT4 AWD system, which distributes power intelligently between the front and rear axles based on wheel speed, acceleration, and steering angle. This setup improves handling during cornering and provides more precise control. An e-Axle rear differential further enhances traction and stability.

The DIRECT4 system in the RX 500h adds dynamic handling benefits beyond basic traction. If you drive spirited routes or value cornering performance, the DIRECT4 system provides measurable differences in feel and control.

Available Grades and Standard Features

RX 350h Grades

RX 350h Premium
The Premium grade includes 19-inch alloy wheels, a moonroof, heated and ventilated front seats, NuLuxe upholstery, a driver's seat memory system, Lexus Interface with a 9.8-inch touchscreen, 12.3-inch multi-information display, power back door, Safe Exit Assist with E-Latch, and ambient interior lighting.

RX 350h F SPORT Design
The F SPORT Design grade adds 21-inch F SPORT alloy wheels, F SPORT grille and bumpers, F SPORT exterior package, and an F SPORT Design badge. The mechanical setup remains identical to the Premium grade.

RX 350h Luxury
The Luxury grade upgrades the Lexus Interface to include Drive Connect plus a 14-inch touchscreen. Other additions include a panoramic moonroof, digital key, wireless charging, power folding exterior mirrors, triple beam headlamps, head-up display, and the Adaptive High Beam system.

RX 350h Ultra Luxury
The Ultra Luxury grade adds Panoramic View Monitor, advanced touch steering wheel, digital rear-view mirror, power back door with kick sensor, Traffic Jam Assist, Lane Change Assist, and Front Cross Traffic Alert.

RX 350h Executive
The Executive grade includes a 21-speaker Mark Levinson audio system, 21-inch alloy wheels, semi-Aniline upholstery, power folding rear seats, Advanced Park system, driver four-way lumbar support, rear sunshade, and a 1,500-watt inverter.

RX 500h Grades

RX 500h F SPORT Performance 2
The Performance 2 grade includes 21-inch F SPORT alloy wheels, colour-keyed rocker panels, F SPORT styling inside and out, Active Sound Control, digital key, digital rear-view mirror, power back door with kick sensor, heated and ventilated front seats, power folding rear seats, e-Axle rear differential, four-wheel steering, and a 12.3-inch multi-information display.

RX 500h F SPORT Performance 3
The Performance 3 enhances the Performance 2 with a 21-speaker Mark Levinson audio system, triple beam headlamps with Adaptive High Beam, Panoramic View Monitor, 1,500-watt inverter, Advanced Park, Traffic Jam Assist, Lane Change Assist, and Front Cross Traffic Alert.

RX 500h Black Line Special Edition
The Black Line Special Edition builds on the Performance 3 configuration with a Black Aero Kit, exclusive five-spoke wheels with black finish, orange brake calipers, unique interior with contrast stitching, Black F SPORT floor mats and cargo mat, and illuminated door sills.

Technology and Safety Across Both Models

Both RX hybrids include Lexus Safety System+ 3.0 as standard, featuring Pre-Collision System with Pedestrian Detection, Dynamic Radar Cruise Control, Lane Departure Alert with Steering Assist, Automatic High Beam, and other active safety technologies. Additional standard equipment includes Blind Spot Monitor, Rear Cross Traffic Alert, eight airbags, and a backup camera.

The Lexus Interface system offers Apple CarPlay and Android Auto compatibility, Bluetooth connectivity, and voice-activated controls. All grades receive connected services including Service Connect, Safety Connect, Remote Connect, and Drive Connect (on higher grades).

Which Model is Right for You?

Choose the RX 350h if your priorities include:

• Maximum fuel efficiency for daily commuting
• Lower operating costs over time
• Smooth, refined hybrid operation
• Standard AWD capability for Ontario winters

Choose the RX 500h if your priorities include:

• Stronger acceleration and passing power
• DIRECT4 AWD with dynamic handling
• Four-wheel steering and e-Axle differential
• F SPORT styling and performance features

Both models provide self-charging hybrid efficiency, five-passenger seating, 838 litres of cargo space, and 1,585 kg (3,494 lbs) of towing capacity. The RX 350h maximizes efficiency, while the RX 500h adds turbocharged power and advanced handling technology.

Experience the RX Hybrid Lineup at Erin Park Lexus

The 2025 Lexus RX 350h and RX 500h serve different driving styles within the hybrid luxury SUV category. Test both models at Erin Park Lexus in Mississauga to compare powertrains, handling characteristics, and cabin refinement. Our sales team can walk you through grade-specific features and help identify the RX hybrid that fits your needs.