2025 Lexus RX vs 2025 Mercedes-Benz GLB-Class

$49,125 · Crossover

$45,800 · Crossover

Comparison Overview

Trying to decide between the refined comfort of the 2025 Lexus RX and the nimble, efficiency-focused 2025 Mercedes-Benz GLB-Class? This comparison pits luxury pedigree against pragmatic efficiency. The Lexus RX commands a higher starting MSRP at $49,125 compared to the GLB's $45,800, a $3,325 gap largely justified by its superior power output of 275 hp versus the GLB’s 221 hp. On the road, the RX is the larger vehicle, measuring 192.5 inches long, offering more immediate cargo space at 29.6 cu ft compared to the GLB’s 22 cu ft. However, the smaller Mercedes provides better fuel economy, achieving 28 MPG combined, whereas the Lexus manages 25 MPG combined. For buyers prioritizing sheer presence and muscle, the RX delivers, but the GLB wins on day-to-day running costs and easier city parking due to its smaller footprint.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Mercedes-Benz GLB-Class

The 2025 Mercedes-Benz GLB-Class is the winner for commuters due to its superior combined 28 MPG rating versus the Lexus RX's 25 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Lexus RX

The 2025 Lexus RX is better for families as its 192.5-inch length accommodates a larger 29.6 cu ft of cargo space compared to the GLB's 22 cu ft.

🏎️ Best for Enthusiasts

2025 Lexus RX

Enthusiasts will prefer the Lexus RX due to its significantly higher output of 275 hp and 317 lb-ft of torque.

💰 Best Value

2025 Mercedes-Benz GLB-Class

The Mercedes-Benz GLB-Class offers better value by being $3,325 less expensive while still delivering efficiency and premium branding.

Choose the Lexus RX if...

You need the extra performance, boasting 275 hp and 317 lb-ft of torque.
Your priority is maximum cargo hauling, leveraging the 29.6 cu ft capacity.
You prefer the smoother operation of a traditional 8-speed shiftable automatic transmission.

Choose the Mercedes-Benz GLB-Class if...

Maximizing fuel economy is critical, as it achieves 28 MPG combined.
You are budget-conscious, saving $3,325 on the initial purchase price.
Easier maneuverability and parking in tight city spaces are necessary due to its smaller 182.4-inch length.

Key Dimensions

Dimension	Lexus RX	Mercedes-Benz GLB-Class
Length	192.5"	182.4"
Width	75.6"	72.2"
Height	67.3"	66.7"
Wheelbase	112.2"	111.4"

Features Comparison

Safety

Feature	Lexus	Mercedes-Benz
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	—
Lane Keeping Assist System	✓	—
Rear Cross Traffic Alert	✓	—
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Dual Rear Side-Mounted Airbags	✓	—
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	—
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Front Fog Lights	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Height Adjustable Headrests	✓	✓
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Rear Solid Disc Brakes	—	✓
Brake Preparation System	—	✓

Engine

Feature	Lexus	Mercedes-Benz
Base Engine Displacement	2.4 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	gas	mild hybrid
Horsepower	275 hp @ 6000 rpm	221 hp @ 5500 rpm
Torque	317 lb-ft @ 1700 rpm	258 lb-ft @ 1800 rpm
Number of Valves	16	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	Lexus	Mercedes-Benz
Transmission Type	8-speed shiftable automatic	8-speed automated manual
Drivetrain Type	front wheel drive	front wheel drive

Fuel

Feature	Lexus	Mercedes-Benz
Fuel Type	premium unleaded (recommended)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	22/29 MPG	25/33 MPG
EPA Fuel Economy (Combined)	25 MPG	28 MPG
EPA Driving Range (City/Highway)	391.6/516.2 mi.	397.5/524.7 mi.
Fuel Tank Capacity	17.8 gal.	15.9 gal.

Comfort & Convenience

Feature	Lexus	Mercedes-Benz
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	—
Transmission Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Adaptive Cruise Control	✓	—
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Three Zone Climate Control	✓	—
Rear Ventilation Ducts with Fan Control	✓	—
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Tilt and Telescopic Steering Wheel	—	✓
Driver Assisted Parking Assist	—	✓
Wireless Charging Pad	—	✓
Cruise Control	—	✓
Universal Remote Transmitter	—	✓
Overhead Console with Storage	—	✓
Dual Zone Climate Control	—	✓
Rear Ventilation Ducts	—	✓

In Car Entertainment

Feature	Lexus	Mercedes-Benz
Infotainment Display	9.8 in	10.25 in
AM/FM Stereo	✓	✓
Speaker System	12	—
Subwoofer Count	1	—
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	6 months

Power Feature

Feature	Lexus	Mercedes-Benz
One-Touch Power Windows	4	4
Keyless Entry	✓	✓
Reverse Tilt Dual Mirrors	✓	—
Heated Mirrors	✓	✓

Frontseats

Feature	Lexus	Mercedes-Benz
Front Head Room	39.5 in.	40.7 in.
Front Leg Room	41.1 in.	41.1 in.
Front Shoulder Room	58.1 in.	55.9 in.
Front Hip Room	56.7 in.	—
Seat Material: Leatherette	✓	✓
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	8-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Passenger Seat Power Adjustments	8-way	8-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Thigh Extension	—	✓
Driver Seat Memory Settings	—	3
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Lexus	Mercedes-Benz
Rear Head Room	38.6 in.	39.3 in.
Rear Leg Room	37.4 in.	38.1 in.
Rear Shoulder Room	56.5 in.	54.9 in.
Rear Hip Room	55.9 in.	—
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	✓
Folding Center Armrest	✓	✓

Tires and Wheels

Feature	Lexus	Mercedes-Benz
Painted Alloy Wheels	✓	—
Polished Alloy Wheels	✓	—
Wheel Size	19 x 8.0 in	18 x 7.5 in
Tire Type	All Season	—
Tire Size	✓	235/55R18
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Wheel Material	—	Alloy
Run Flat Tires	—	✓

Suspension

Feature	Lexus	Mercedes-Benz
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓

Warranty

Feature	Lexus	Mercedes-Benz
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	6 yr./ 70000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	6 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ 50000 mi.
Complimentary Scheduled Maintenance	1 yr./ 10000 mi.	—

Frequently Asked Questions

Common questions about comparing the 2025 Lexus RX and 2025 Mercedes-Benz GLB-Class.

Which vehicle is more powerful for passing on the highway?

The 2025 Lexus RX holds a clear power advantage, generating 275 hp and 317 lb-ft of torque, substantially more than the GLB-Class's 221 hp and 258 lb-ft.

How much does the difference in fuel efficiency affect annual costs?

The GLB-Class offers 28 MPG combined, beating the RX's 25 MPG combined, which translates to noticeable savings, especially since both recommend premium fuel.

Is the smaller Mercedes-Benz GLB-Class noticeably smaller than the Lexus RX?

Yes, the GLB-Class is substantially smaller, measuring 182.4 inches in length compared to the RX's 192.5 inches, making it easier to handle in tight spots.

Do these cars require the same type of gasoline?

Both vehicles recommend or require premium unleaded gasoline; however, the GLB-Class explicitly lists it as 'required,' while the RX lists it as 'recommended.'

Which crossover offers more space for luggage?

The Lexus RX provides 29.6 cu ft of cargo capacity, which is significantly more usable space than the 22 cu ft offered behind the rear seats of the Mercedes-Benz GLB-Class.