2025 Mercedes-Benz GLB-Class vs 2026 Kia Sorento Plug-In Hybrid

$45,800 · Crossover

$48,290 · Crossover

Comparison Overview

Choosing between premium badge heritage and cutting-edge hybrid tech can be tough, especially when comparing the 2025 Mercedes-Benz GLB-Class starting at $45,800 against the slightly pricier 2026 Kia Sorento Plug-In Hybrid at $48,290. The GLB offers a compact footprint at 182.4 inches long, appealing if tight city parking is a major concern. However, the Sorento PHEV provides superior efficiency, boasting a combined 33 MPG compared to the GLB's 28 MPG, alongside 30 miles of electric-only driving range. While the GLB provides 221 hp, the Kia steps up with 261 hp for more spirited acceleration, though both share an identical 258 lb-ft of torque. If maximizing mileage and utilizing AWD are priorities over the luxury badge, the Sorento presents a compelling financial and technical argument despite its higher initial cost.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Kia Sorento Plug-In Hybrid

The Sorento PHEV wins for commuters due to its 30 miles of electric range and better overall fuel economy of 33 MPG combined.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz GLB-Class

The GLB offers more usable cubic feet of cargo space at 22 cu ft, making it better suited for hauling family gear than the Sorento's 12.6 cu ft.

🏎️ Best for Enthusiasts

2026 Kia Sorento Plug-In Hybrid

The 2026 Kia Sorento wins here with 261 horsepower and standard All-Wheel Drive, beating the GLB's 221 hp and FWD setup.

💰 Best Value

2026 Kia Sorento Plug-In Hybrid

Despite costing $2,490 more, the Sorento's lower running costs due to better MPG, regular fuel requirement, and EV range offer better long-term value.

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

You prefer the prestige of the Mercedes-Benz badge for your daily drive.
You prioritize maximizing cargo capacity, as the GLB offers 22 cu ft versus the Sorento's 12.6 cu ft.
You are comfortable using premium unleaded fuel and prefer the responsiveness of the 8-speed automated manual transmission.

Choose the Kia Sorento Plug-In Hybrid if...

Saving money on fuel is paramount, leveraging the 33 MPG combined rating and 30 miles of EV range.
You need the enhanced traction provided by standard All-Wheel Drive for various conditions.
You desire higher output from the powertrain, thanks to the Sorento's superior 261 horsepower rating.

Key Dimensions

Dimension	Mercedes-Benz GLB-Class	Kia Sorento Plug-In Hybrid
Length	182.4"	189.6"
Width	72.2"	74.8"
Height	66.7"	66.9"
Wheelbase	111.4"	110.8"

Features Comparison

Safety

Feature	Mercedes-Benz	Kia
Blind Spot Monitor	✓	✓
Driver Attention Alert	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front 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
Brake Drying	✓	—
Front Ventilated Disc Brakes	✓	✓
Rear Solid Disc Brakes	✓	—
Brake Preparation System	✓	—
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	✓	✓
Lane Departure Warning	—	✓
Lane Keeping Assist System	—	✓
Rear Cross Traffic Alert	—	✓
Dual Rear Side-Mounted Airbags	—	✓
Third Row Head Airbags	—	✓
Rear Ventilated Disc Brakes	—	✓

Engine

Feature	Mercedes-Benz	Kia
Base Engine Displacement	2.0 L	1.6 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	mild hybrid	plug-in hybrid
Horsepower	221 hp @ 5500 rpm	261 hp
Torque	258 lb-ft @ 1800 rpm	258 lb-ft
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	Mercedes-Benz	Kia
Transmission Type	8-speed automated manual	6-speed shiftable automatic
Drivetrain Type	front wheel drive	all wheel drive
Center Differential Type	—	Limited Slip
Hill Descent Control	—	✓

Fuel

Feature	Mercedes-Benz	Kia
Fuel Type	premium unleaded (required)	regular unleaded
EPA Fuel Economy (City/Highway)	25/33 MPG	33/34 MPG
EPA Fuel Economy (Combined)	28 MPG	33 MPG
EPA Driving Range (City/Highway)	397.5/524.7 mi.	409.2/421.6 mi.
Fuel Tank Capacity	15.9 gal.	12.4 gal.
EPA Efficiency (City/Highway MPGe)	—	77/71 MPGe
EPA Efficiency (Combined MPGe)	—	74 MPGe
EPA Electric Driving Range	—	30 mi.
EPA Energy Consumption (kWh/100 mi)	—	45
Charging Time (240V)	—	3.4 hr.
DC Fast Charging Port Type	—	SAE J1772

Comfort & Convenience

Feature	Mercedes-Benz	Kia
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	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Driver Assisted Parking Assist	✓	—
Wireless Charging Pad	✓	✓
Cruise Control	✓	—
Universal Remote Transmitter	✓	—
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	✓	✓
Adaptive Cruise Control	—	✓
3rd Row Cupholders	—	✓
Manual Rear Seat Easy Entry	—	✓
Extended Cabin Heating/Cooling	—	✓

In Car Entertainment

Feature	Mercedes-Benz	Kia
Infotainment Display	10.25 in	12.3 in
AM/FM Stereo	✓	✓
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	6 months	3 months
Speaker System	—	6

Power Feature

Feature	Mercedes-Benz	Kia
One-Touch Power Windows	4	1
Keyless Entry	✓	✓
Heated Mirrors	✓	✓

Frontseats

Feature	Mercedes-Benz	Kia
Front Head Room	40.7 in.	40.3 in.
Front Leg Room	41.1 in.	41.4 in.
Front Shoulder Room	55.9 in.	59.1 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
Driver Seat Thigh Extension	✓	—
Driver Seat Memory Settings	3	—
Passenger Seat Power Adjustments	8-way	8-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	—
Passenger Seat Thigh Extension	✓	—
Passenger Seat Memory Settings	3	—
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Front Hip Room	—	55.6 in.

Rearseats

Feature	Mercedes-Benz	Kia
Rear Head Room	39.3 in.	39.1 in.
Rear Leg Room	38.1 in.	40.3 in.
Rear Shoulder Room	54.9 in.	58.1 in.
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	—
Folding Center Armrest	✓	✓
Rear Hip Room	—	55.1 in.
Manual Folding Third Row Seat	—	✓

Tires and Wheels

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

Suspension

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

Warranty

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

Frequently Asked Questions

Common questions about comparing the 2025 Mercedes-Benz GLB-Class and 2026 Kia Sorento Plug-In Hybrid.

Which vehicle is more practical for city driving and tight parking situations?

The Mercedes-Benz GLB-Class is slightly more maneuverable, measuring 182.4 inches in length compared to the Kia Sorento's 189.6 inches. However, the Sorento's 30 miles of electric range significantly cuts down on gas use during stop-and-go city commutes.

Does the difference in horsepower significantly affect driving feel between the two?

Yes, the Sorento PHEV has a noticeable edge with 261 hp versus the GLB's 221 hp, even though both produce the same 258 lb-ft of torque. This extra power in the Kia should translate to quicker merging and passing capability.

How much extra does premium fuel cost the GLB driver annually compared to the Sorento?

The GLB requires premium fuel and gets 28 MPG combined, whereas the Sorento uses regular unleaded and achieves 33 MPG combined. This difference in fuel type and efficiency adds up over a year of driving.

Is the lower MSRP of the GLB truly a better value purchase?

While the GLB has an MSRP that is $2,490 lower, the Sorento's PHEV technology, higher MPG, and standard AWD feature set often offset that initial cost difference quickly through fuel savings and performance upgrades.

Which crossover offers more utility for hauling large items?

The GLB provides significantly more overall cargo capacity at 22 cubic feet behind the second row, surpassing the Sorento PHEV's 12.6 cubic feet of storage space.