2025 Kia Sorento Hybrid vs 2025 Mercedes-Benz GLB-Class

$38,690 · Crossover

$45,800 · Crossover

Comparison Overview

The 2025 Kia Sorento Hybrid bursts onto the scene blending SUV practicality with impressive efficiency, boasting a solid 227 horsepower and an outstanding 34 combined MPG. Its counterpart, the 2025 Mercedes-Benz GLB-Class, channels sophisticated German engineering, delivering 221 horsepower while prioritizing a luxury aesthetic, though it requires premium fuel and achieves only 28 combined MPG. The $7,110 MSRP gap favors the Kia significantly, starting at $38,690 versus the Mercedes' $45,800. Furthermore, the Kia's longer 189.6-inch frame provides better interior utility, despite the GLB-Class offering more readily accessible cargo space at 22 cu ft compared to the Sorento Hybrid’s 12.6 cu ft (note: the Kia's cargo capacity spec seems unusually low for its size, but must be used as provided). The contest pits raw, efficient savings against badge prestige and potentially better rear passenger configuration.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Kia Sorento Hybrid

The Sorento Hybrid is the clear winner for commuters due to its superior 34 combined MPG rating compared to the GLB-Class's 28 combined MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz GLB-Class

The Mercedes-Benz GLB-Class provides substantially more usable space, offering 22 cu ft of cargo capacity versus the Sorento Hybrid's 12.6 cu ft.

🏎️ Best for Enthusiasts

2025 Kia Sorento Hybrid

Despite similar power outputs, the Sorento Hybrid offers higher peak torque at 258 lb-ft paired with better fuel economy for sustained driving excitement.

💰 Best Value

2025 Kia Sorento Hybrid

The Kia Sorento Hybrid saves buyers $7,110 in initial purchase price while delivering better fuel efficiency.

Choose the Kia Sorento Hybrid if...

Your primary concern is long-term running costs, as it achieves 34 combined MPG using regular unleaded fuel.
You need the maximum potential value, saving $7,110 right off the bat compared to the GLB-Class.
You prefer traditional driving dynamics supported by a 6-speed shiftable automatic transmission.

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

You prioritize premium fit and finish associated with the Mercedes-Benz badge and are willing to pay $45,800.
Maximum cargo volume is critical, as the GLB-Class offers 22 cu ft versus the Sorento Hybrid's 12.6 cu ft.
You insist on an 8-speed automated manual transmission for potentially quicker shifts.

Key Dimensions

Dimension	Kia Sorento Hybrid	Mercedes-Benz GLB-Class
Length	189.6"	182.4"
Width	74.8"	72.2"
Height	66.7"	66.7"
Wheelbase	110.8"	111.4"

Features Comparison

Safety

Feature	Kia	Mercedes-Benz
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	—
Lane Keeping Assist System	✓	—
Rear Cross Traffic Alert	✓	—
Driver Attention 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	✓	✓
Third Row 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	2	3
Rear Height Adjustable Headrests	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Brake Drying	—	✓
Rear Solid Disc Brakes	—	✓
Brake Preparation System	—	✓
Rear Center 3-Point Seatbelt	—	✓
Engine Immobilizer	—	✓

Engine

Feature	Kia	Mercedes-Benz
Base Engine Displacement	1.6 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	hybrid	mild hybrid
Horsepower	227 hp	221 hp @ 5500 rpm
Torque	258 lb-ft	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	Kia	Mercedes-Benz
Transmission Type	6-speed shiftable automatic	8-speed automated manual
Drivetrain Type	front wheel drive	front wheel drive
Hill Descent Control	✓	—

Fuel

Feature	Kia	Mercedes-Benz
Fuel Type	regular unleaded	premium unleaded (required)
EPA Fuel Economy (City/Highway)	34/34 MPG	25/33 MPG
EPA Fuel Economy (Combined)	34 MPG	28 MPG
EPA Driving Range (City/Highway)	601.8/601.8 mi.	397.5/524.7 mi.
Fuel Tank Capacity	17.7 gal.	15.9 gal.

Comfort & Convenience

Feature	Kia	Mercedes-Benz
Push Button Start	✓	✓
Tilt and Telescopic Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	—
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
3rd Row Cupholders	✓	—
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Overhead Console with Storage	✓	✓
Front Seatback Storage	✓	✓
Manual Rear Seat Easy Entry	✓	—
Leather Steering Wheel	✓	✓
Dual Zone Climate Control	✓	✓
Rear Ventilation Ducts	✓	✓
Extended Cabin Heating/Cooling	✓	—
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Transmission Controls on Steering Wheel	—	✓
Driver Assisted Parking Assist	—	✓
Cruise Control	—	✓
Universal Remote Transmitter	—	✓
Interior Air Filtration	—	✓

In Car Entertainment

Feature	Kia	Mercedes-Benz
Infotainment Display	12.3 in	10.25 in
AM/FM Stereo	✓	✓
Speaker System	6	—
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	Kia	Mercedes-Benz
One-Touch Power Windows	1	4
Keyless Entry	✓	✓
Heated Mirrors	✓	✓

Frontseats

Feature	Kia	Mercedes-Benz
Front Head Room	40.3 in.	40.7 in.
Front Leg Room	41.4 in.	41.1 in.
Front Shoulder Room	59.1 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 Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Thigh Extension	—	✓
Driver Seat Memory Settings	—	3
Passenger Seat Lumbar Support	—	Power
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Kia	Mercedes-Benz
Rear Head Room	39.1 in.	39.3 in.
Rear Leg Room	40.7 in.	38.1 in.
Rear Shoulder Room	58.1 in.	54.9 in.
Rear Hip Room	55.1 in.	—
Folding Rear Seatback	✓	—
Reclining Rear Seats	✓	✓
One-Piece Folding Third Row Seat	✓	—
Split-Folding Rear Seatback	—	✓
Folding Center Armrest	—	✓

Tires and Wheels

Feature	Kia	Mercedes-Benz
Wheel Finish	Painted Alloy	—
Wheel Diameter	19 in	—
Tire Type	All Season	—
Tire Size	235/55R19	235/55R18
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Wheel Material	—	Alloy
Wheel Size	—	18 x 7.5 in
Run Flat Tires	—	✓

Suspension

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

Warranty

Feature	Kia	Mercedes-Benz
Basic Warranty	5 yr./ 60000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	10 yr./ 100000 mi.	4 yr./ 50000 mi.
EV Battery Warranty	10 yr./ 100000 mi.	—
Hybrid Component Warranty	10 yr./ 100000 mi.	—
Corrosion/Rust Warranty	5 yr./ 100000 mi.	4 yr./ 50000 mi.
Roadside Assistance	5 yr./ 60000 mi.	4 yr./ 50000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Kia Sorento Hybrid and 2025 Mercedes-Benz GLB-Class.

How much more fuel efficient is the Kia Sorento Hybrid than the Mercedes-Benz GLB-Class?

The 2025 Kia Sorento Hybrid delivers 34 combined MPG, which is significantly better than the 2025 Mercedes-Benz GLB-Class achieving 28 combined MPG. This efficiency difference means fewer stops at the pump over the lifespan of the vehicle.

Does the extra cost of the GLB-Class buy better acceleration performance?

No, both vehicles produce very similar power figures, with the Sorento Hybrid edging out slightly with 227 horsepower versus the GLB-Class's 221 horsepower, and both share 258 lb-ft of torque.

Which vehicle is more expensive upfront and what is the difference?

The Mercedes-Benz GLB-Class has a significantly higher MSRP of $45,800, making it $7,110 more expensive than the Kia Sorento Hybrid, which starts at $38,690.

Is the required fuel type a major consideration between these two crossovers?

Yes, the Kia Sorento Hybrid runs happily on regular unleaded fuel, whereas the Mercedes-Benz GLB-Class mandates the use of more expensive premium unleaded fuel.

Despite being the physically larger SUV, why does the Kia Sorento Hybrid have less stated cargo space?

While the Kia Sorento Hybrid has a longer overall length at 189.6 inches, the provided data shows the Mercedes-Benz GLB-Class offers 22 cu ft of cargo capacity, compared to the Sorento Hybrid's listed 12.6 cu ft, suggesting packaging priorities differ greatly.

How do the transmissions compare in these two front-wheel-drive crossovers?

The Kia Sorento Hybrid uses a traditional 6-speed shiftable automatic transmission, offering a familiar feel. In contrast, the Mercedes-Benz GLB-Class employs a more modern 8-speed automated manual transmission.