2025 INFINITI QX50 vs 2026 Mercedes-Benz GLB
Comparison Overview
The most significant numerical divergence between the 2025 INFINITI QX50 (car1) and the 2026 Mercedes-Benz GLB (car2) is engine output, where the QX50 delivers 268 horsepower compared to the GLB's 221 horsepower, a difference of 47 hp. This power advantage is coupled with higher torque from the QX50 at 280 lb-ft versus the GLB's 258 lb-ft. However, the GLB commands a clear lead in fuel economy, achieving 28 combined MPG, significantly better than the QX50's 25 combined MPG, translating to 33 highway MPG versus 28 highway MPG for the INFINITI. Pricewise, the QX50 undercuts the GLB by $800, starting at $43,000 versus $43,800. Despite this higher cost, the GLB offers less utility with 22.0 cu ft of cargo space compared to the QX50's 31.4 cu ft.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 Mercedes-Benz GLB
The Mercedes-Benz GLB achieves superior fuel economy with 28 combined MPG, which lowers overall running costs for daily driving.
2025 INFINITI QX50
The INFINITI QX50 provides significantly more usable space with 31.4 cubic feet of cargo capacity compared to the GLB's 22.0 cubic feet.
2025 INFINITI QX50
The QX50 outputs 268 horsepower and 280 lb-ft of torque, offering substantially more performance than the GLB's 221 horsepower.
2025 INFINITI QX50
The INFINITI QX50 is $800 less expensive and offers 9.4 cubic feet more cargo volume than the Mercedes-Benz GLB.
Choose the INFINITI QX50 if...
- Maximum cargo space is essential, as the QX50 offers 31.4 cu ft.
- A more powerful engine delivering 268 hp and 280 lb-ft of torque is desired.
- The base MSRP must be kept under $43,500, with the QX50 priced at $43,000.
Choose the Mercedes-Benz GLB if...
- Fuel efficiency is paramount, highlighted by the GLB's 33 highway MPG rating.
- The vehicle configuration should feature an 8-speed automated manual transmission instead of a CVT.
- A slightly taller stance (66.7 inches height) and front-wheel drive configuration are preferred.
Key Dimensions
| Dimension | INFINITI QX50 | Mercedes-Benz GLB |
|---|---|---|
| Length | 184.7" | 182.4" |
| Width | 74.9" | 72.2" |
| Height | 66.0" | 66.7" |
| Wheelbase | 110.2" | 111.4" |
Features Comparison
Safety
| Feature | INFINITI | 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 | ✓ | ✓ |
| 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 | — | ✓ |
| Front Fog Lights | — | ✓ |
Engine
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | inline 4 |
| Base Engine Type | gas | mild hybrid |
| Horsepower | 268 hp @ 5600 rpm | 221 hp @ 5500 rpm |
| Torque | 280 lb-ft @ 4800 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 | INFINITI | Mercedes-Benz |
|---|---|---|
| Transmission Type | continuously variable-speed automatic | 8-speed automated manual |
| Drivetrain Type | all wheel drive | front wheel drive |
| Center Differential Type | Limited Slip | — |
Fuel
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Fuel Type | premium unleaded (recommended) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 22/28 MPG | 25/33 MPG |
| EPA Fuel Economy (Combined) | 25 MPG | 28 MPG |
| EPA Driving Range (City/Highway) | 352.0/448.0 mi. | 397.5/524.7 mi. |
| Fuel Tank Capacity | 16.0 gal. | 15.9 gal. |
Comfort & Convenience
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| 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 | ✓ | ✓ |
| Rear Parking Sensors | ✓ | ✓ |
| Wireless Charging Pad | ✓ | — |
| Adaptive Cruise Control | ✓ | — |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Overhead Console with Storage | ✓ | ✓ |
| Front Seatback Storage | ✓ | ✓ |
| Leather Steering Wheel | ✓ | ✓ |
| Dual Zone Climate Control | ✓ | ✓ |
| Rear Ventilation Ducts | ✓ | ✓ |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Front Parking Sensors | — | ✓ |
| Driver Assisted Parking Assist | — | ✓ |
| Cruise Control | — | ✓ |
In Car Entertainment
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Infotainment Display | 8.0 in | 10.25 in |
| AM/FM Stereo | ✓ | ✓ |
| Speaker System | 6 | — |
| Android Auto (Wired) | ✓ | — |
| Apple CarPlay (Wired) | ✓ | — |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 3 months | 6 months |
| Speed Sensitive Volume Control | ✓ | — |
| Android Auto (Wireless) | — | ✓ |
| Apple CarPlay (Wireless) | — | ✓ |
Power Feature
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| One-Touch Power Windows | 2 | 4 |
| Keyless Entry | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
| Remote Keyless Entry | — | ✓ |
Frontseats
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Front Head Room | 41.0 in. | 40.7 in. |
| Front Leg Room | 39.6 in. | 41.1 in. |
| Front Shoulder Room | 57.9 in. | 55.9 in. |
| Front Hip Room | 55.6 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 | ✓ | ✓ |
| Driver Seat Thigh Extension | — | ✓ |
| Driver Seat Memory Settings | — | 3 |
| Passenger Seat Lumbar Support | — | Power |
| Passenger Seat Thigh Extension | — | ✓ |
| Passenger Seat Memory Settings | — | 3 |
| Driver Seat Heating | — | Multi-level |
| Passenger Seat Heating | — | Multi-level |
Rearseats
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Rear Head Room | 39.1 in. | 39.3 in. |
| Rear Leg Room | 38.7 in. | 38.1 in. |
| Rear Shoulder Room | 57.1 in. | 54.9 in. |
| Rear Hip Room | 53.8 in. | — |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Reclining Rear Seats | ✓ | ✓ |
| Folding Center Armrest | ✓ | ✓ |
Tires and Wheels
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Wheel Finish | Painted Alloy | — |
| Wheel Size | 19 x 7.5 in | 18 x 7.5 in |
| Tire Size | 235/55R19 | 235/55R18 |
| Run Flat Tires | ✓ | ✓ |
| Wheel Material | — | Alloy |
Suspension
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Basic Warranty | 4 yr./ 60000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 6 yr./ 70000 mi. | 4 yr./ 50000 mi. |
| Corrosion/Rust Warranty | 7 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| Roadside Assistance | 4 yr./ 60000 mi. | 4 yr./ 50000 mi. |
| Complimentary Scheduled Maintenance | 3 yr./ unlimited mi. | — |
| Hybrid Component Warranty | — | 6 yr./ 62000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 INFINITI QX50 and 2026 Mercedes-Benz GLB.
Which crossover is more powerful based on the specifications?
The 2025 INFINITI QX50 (car1) is notably more powerful, generating 268 horsepower and 280 lb-ft of torque. This represents a 47 horsepower advantage over the 2026 Mercedes-Benz GLB's 221 horsepower output.
How do the fuel economy ratings compare between the QX50 and the GLB?
The 2026 Mercedes-Benz GLB (car2) offers superior fuel economy, achieving 28 combined MPG (25 city/33 highway). The QX50 lags slightly with 25 combined MPG (22 city/28 highway), although both recommend premium fuel.
Is there a significant difference in starting price for these vehicles?
Yes, the 2025 INFINITI QX50 has a lower Manufacturer's Suggested Retail Price (MSRP) of $43,000. The 2026 Mercedes-Benz GLB starts at $43,800, making the QX50 $800 more affordable upfront.
Which crossover provides more usable space for luggage or gear?
The INFINITI QX50 offers significantly more cargo capacity at 31.4 cubic feet. The Mercedes-Benz GLB offers only 22.0 cubic feet, a difference of over 9 cubic feet for larger hauls.
What differences exist in the drivetrain or transmission technology?
The QX50 utilizes an all-wheel drive system paired with a continuously variable-speed automatic transmission. Conversely, the GLB is listed with front-wheel drive and an 8-speed automated manual transmission.
Are both vehicles the same size externally?
No, they have slight dimensional variations; the QX50 is longer at 184.7 inches compared to the GLB's 182.4 inches, but the GLB is taller at 66.7 inches versus the QX50's 66.0 inches.
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