2023 Lexus RX 450H+ PHEV Review: 42-Mile EV Range

The 2023 Lexus RX 450h+ plug-in hybrid electric vehicle (PHEV) redefines what buyers expect from a premium midsize SUV. Combining a smooth 2.5-liter petrol engine with electric motors and a substantial 18.1 kWh battery, this model delivers 304 horsepower while promising up to 42 miles of electric-only driving. It’s designed for those seeking refinement, efficiency, and versatility in one package.

Powertrain Breakdown: Seamless Hybrid Performance

At the heart of the RX 450h+ lies a sophisticated powertrain that integrates a naturally aspirated 2.5-liter four-cylinder petrol engine with front and rear electric motors. This setup produces a combined 304 brake horsepower and achieves 0-62 mph in 6.5 seconds, making it brisk for its class despite weighing over 2.2 tons. The electronically controlled continuously variable transmission (eCVT) ensures smooth power delivery, starting quietly in EV mode for urban drives.

Owners can switch between pure EV, hybrid, and self-charging modes effortlessly. The battery supports around 40-42 miles of electric range, ideal for daily commutes or zero-emission zones. When the battery depletes, the engine acts as a generator, maintaining hybrid efficiency. Real-world fuel economy hovers around 50 mpg in mixed use, far more realistic than official figures exceeding 200 mpg.

• Key Powertrain Specs:
• Engine: 2.5L petrol + electric motors
• Total Output: 304 hp, with 227 Nm from engine, 270 Nm front motor, 121 Nm rear
• EV Range: 40-42 miles
• 0-62 mph: 6.5 seconds
• Top Speed: 124 mph
• Emissions: 25-26 g/km

Exterior Design: Modern Elegance Evolved

Lexus has refined the RX’s iconic styling for 2023, moving away from the controversial spindle grille to a bolder, bluff front end with integrated lighting. The body lines are cleaner, emphasizing a muscular stance with 21-inch alloys on higher trims. Rear design features illuminated ‘Lexus’ lettering instead of the ‘L’ badge, paired with slim taillights for a premium look. Special paints like Sonic Copper add a unique bronze hue created via sound wave technology.

This redesign makes the RX feel contemporary yet unmistakably Lexus, with dimensions that balance presence and maneuverability: length around 4.8 meters, suitable for city parking and highway stability.

Interior Luxury: A Sanctuary on Wheels

Step inside, and the RX 450h+ impresses with its high-quality materials—suede inserts, soft-touch surfaces, and premium leathers create an upscale ambiance. The cabin is spacious, with ample legroom and headroom for five adults. Rear passengers enjoy heated/cooled seats, two USB-C ports, a 12V socket, and a panoramic roof that enhances the airy feel. The transmission tunnel is low, making the middle seat viable for shorter trips.

Up front, 14-inch touchscreens dominate the dashboard: one for infotainment with wireless Apple CarPlay/Android Auto, and another for digital gauges. The system is intuitive, a big upgrade from past Lexus interfaces. Ambient lighting and Mark Levinson audio (on Takumi trims) elevate the experience further.

Driving Dynamics: Comfort Over Sport

The RX 450h+ prioritizes serenity, gliding quietly in EV mode with minimal road or wind noise. On highways, it excels at relaxed cruising, though the petrol engine can sound raucous under hard acceleration—a trait of its naturally aspirated design. Handling is composed for an SUV this size, with all-wheel drive providing grip, but it leans more toward comfort than agility.

Ride quality is generally plush, absorbing bumps better than sportier rivals, though the heavy battery slightly compromises wafting suppleness. Braking feels regenerated smoothly most times, but some prototypes showed abrupt transitions to friction brakes—likely refined for production. Multiple modes (EV, Hybrid, Sport) allow tailoring to conditions.

Fuel Efficiency and Practicality

With official economy at 235-256 mpg and low emissions, the RX suits company car users. Realistically, expect 50 mpg combined, dropping if EV charging is infrequent. The 461-liter boot expands with folding seats, and a hands-free tailgate adds convenience. It’s family-friendly for four, with ISOFIX points and smooth EV mode for school runs.

• Practical Highlights:
• Boot: 461 liters (expandable)
• Towing: Up to 1,500 kg braked
• Family Fit: Excellent for 4, good for 5
• Charging: 6.6 kW onboard, full in ~2.5 hours

Safety and Technology Suite

Lexus Safety System+ 3.0 includes adaptive cruise, lane tracing, emergency steering, and a 360-degree camera. Blind-spot monitoring and rear cross-traffic alert enhance security. The PHEV’s structure incorporates battery protection for peace of mind.

Trims, Pricing, and Rivals

Starting around £70,000 (Takumi at £79,450 tested), it undercuts some PHEV rivals like BMW X5 xDrive50e. Premium, Line, and Takumi trims offer progression in luxury.

Pros and Cons

• Pros: Luxurious interior, strong EV range, quiet EV mode, value vs. rivals, refined highway cruiser
• Cons: Engine noise under load, braking feel in prototypes, not the sportiest handler, heavy weight impacts ride slightly

Frequently Asked Questions (FAQs)

What is the electric range of the Lexus RX 450h+?

Up to 42 miles in real-world conditions, depending on driving style and temperature.

Is the RX 450h+ suitable for families?

Yes, it’s spacious for four with good boot space and family-oriented features like USB ports and ISOFIX.

How does it compare to the non-hybrid RX?

The PHEV adds efficiency and EV capability without sacrificing much luxury, though it’s pricier.

What’s the charging time?

Full charge in about 2.5 hours on a 6.6 kW wallbox.

Does it have all-wheel drive?

Yes, standard dual-motor AWD for better traction.

Final Verdict: A Strong Contender

The 2023 Lexus RX 450h+ excels as a comfortable, efficient luxury PHEV SUV, ideal for long-distance drivers valuing quietude and low running costs. While not the quickest or sportiest, its refinement and tech make it a worthy alternative to German rivals. For 2026 buyers, it’s a smart, future-proof choice in a shifting automotive landscape.