2025 Mercedes-Benz GLB-Class vs 2026 Kia Sportage Hybrid

$45,800 · Crossover

$30,290 · Crossover

Comparison Overview

The 2025 Mercedes-Benz GLB-Class bursts onto the scene promising luxury pedigree and sharp handling, starting at an imposing MSRP of $45,800, powered by 221 hp. Contrast this with the 2026 Kia Sportage Hybrid, which electrifies the segment with phenomenal efficiency, achieving 42 combined MPG from its 232 hp hybrid powertrain, all starting at a much more accessible $30,290. The performance metrics are surprisingly close on paper; the Kia nudges ahead with 271 lb-ft of torque versus the Mercedes' 258 lb-ft. However, the GLB demands premium fuel, while the Kia runs on regular unleaded. The biggest chasm lies in practicality: the Sportage Hybrid offers a cavernous 39.5 cu ft of cargo space, dwarfing the GLB's 22 cu ft. This comparison pits German premium aspiration against Korean hyper-efficiency and utility, separated by a massive $15,510 MSRP gap and a 14 MPG efficiency advantage for the Kia.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Kia Sportage Hybrid

The 2026 Kia Sportage Hybrid wins for commuters due to its superior 42 combined MPG efficiency compared to the GLB's 28 MPG, saving significant running costs.

👨‍👩‍👧‍👦 Best for Families

2026 Kia Sportage Hybrid

The Sportage Hybrid offers substantially more utility with 39.5 cu ft of cargo capacity, significantly beating the GLB's 22 cu ft.

🏎️ Best for Enthusiasts

2025 Mercedes-Benz GLB-Class

Despite a slight power deficit, the Mercedes-Benz GLB-Class often provides a more composed and prestigious driving dynamic expected of the brand.

💰 Best Value

2026 Kia Sportage Hybrid

The Kia Sportage Hybrid saves buyers $15,510 upfront and provides 14 more miles per gallon, creating undeniable value.

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

You prioritize the prestige and design language associated with the Mercedes-Benz brand starting at $45,800.
You prefer the crisp shifts and quick engagement of an 8-speed automated manual transmission.
You require premium fuel performance and find the 25/33 MPG sufficient for your needs.

Choose the Kia Sportage Hybrid if...

You are maximizing efficiency, needing 41/44 MPG city/highway performance from a hybrid powertrain.
You require maximum hauling capability, as its 39.5 cu ft cargo space greatly exceeds the GLB’s capacity.
You want to save $15,510 initially while still enjoying 232 hp and 271 lb-ft of torque.

Key Dimensions

Dimension	Mercedes-Benz GLB-Class	Kia Sportage Hybrid
Length	182.4"	184.4"
Width	72.2"	73.4"
Height	66.7"	65.4"
Wheelbase	111.4"	108.5"

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	—	✓
Dual Rear Side-Mounted Airbags	—	✓

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	hybrid
Horsepower	221 hp @ 5500 rpm	232 hp
Torque	258 lb-ft @ 1800 rpm	271 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	front wheel drive
Hill Descent Control	—	✓

Fuel

Feature	Mercedes-Benz	Kia
Fuel Type	premium unleaded (required)	regular unleaded
EPA Fuel Economy (City/Highway)	25/33 MPG	41/44 MPG
EPA Fuel Economy (Combined)	28 MPG	42 MPG
EPA Driving Range (City/Highway)	397.5/524.7 mi.	561.7/602.8 mi.
Fuel Tank Capacity	15.9 gal.	13.7 gal.

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	—	✓
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.	39.6 in.
Front Leg Room	41.1 in.	41.4 in.
Front Shoulder Room	55.9 in.	57.5 in.
Seat Material: Leatherette	✓	—
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	—
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	—
Driver Seat Thigh Extension	✓	—
Driver Seat Memory Settings	3	—
Passenger Seat Power Adjustments	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	—
Passenger Seat Heating	Multi-level	—
Front Hip Room	—	54.8 in.
Seat Material: Cloth	—	✓
Driver Seat Manual Adjustments	—	6-way
Passenger Seat Manual Adjustments	—	4-way

Rearseats

Feature	Mercedes-Benz	Kia
Rear Head Room	39.3 in.	39.1 in.
Rear Leg Room	38.1 in.	41.3 in.
Rear Shoulder Room	54.9 in.	55.6 in.
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	✓
Folding Center Armrest	✓	✓
Rear Hip Room	—	53.4 in.

Tires and Wheels

Feature	Mercedes-Benz	Kia
Wheel Material	Alloy	—
Wheel Size	18 x 7.5 in	17 x 7.0 in
Tire Size	235/55R18	235/65R17
Run Flat Tires	✓	—
Wheel Finish	—	Painted Alloy
Tire Type	—	All Season

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 Sportage Hybrid.

What is the main financial difference between the 2025 GLB-Class and the 2026 Sportage Hybrid?

The 2025 Mercedes-Benz GLB-Class has a significantly higher starting MSRP of $45,800, whereas the 2026 Kia Sportage Hybrid begins at $30,290, resulting in a $15,510 entry price difference.

How much better is the fuel economy of the Kia Sportage Hybrid compared to the Mercedes-Benz GLB?

The Kia Sportage Hybrid boasts a massive advantage with 42 combined MPG, significantly outperforming the Mercedes-Benz GLB's 28 combined MPG, translating to 14 MPG better efficiency.

Does the Mercedes GLB offer more cargo room than the Kia Sportage Hybrid?

No, the Kia Sportage Hybrid offers significantly more space for hauling with 39.5 cu ft of cargo capacity compared to the GLB's smaller 22 cu ft maximum capacity.

Which vehicle offers more horsepower and torque?

The 2026 Kia Sportage Hybrid has slightly more power with 232 hp and 271 lb-ft of torque, edging out the 2025 GLB's 221 hp and 258 lb-ft of torque.

Do both crossovers require the same type of gasoline?

No, the Mercedes-Benz GLB-Class mandates the use of premium unleaded fuel for its engine, while the hybrid Kia Sportage can run efficiently on regular unleaded gasoline.

Are the size differences between the two crossovers noticeable?

While both are compact crossovers, the Kia is slightly longer at 184.4 inches and wider at 73.4 inches than the GLB's 182.4-inch length and 72.2-inch width.