2026 Kia Sportage Plug-In Hybrid vs 2026 Mercedes-Benz GLB

$40,490 · Crossover

$43,800 · Crossover

Comparison Overview

The most significant divergence between the 2026 Kia Sportage Plug-In Hybrid (Car1) and the 2026 Mercedes-Benz GLB (Car2) lies in operational efficiency, with Car1 offering a substantial 8 MPG combined fuel economy advantage (36 MPG vs. 28 MPG). Car1 also provides superior power output, achieving 268 hp and 271 lb-ft of torque compared to Car2's 221 hp and 258 lb-ft. Despite its PHEV powertrain, Car1 undercuts Car2 on price by $3,310, starting at $40,490 versus Car2's $43,800 MSRP. Furthermore, the Sportage PHEV delivers 33 miles of pure electric range and requires cheaper regular unleaded fuel, whereas the GLB mandates premium fuel. In terms of utility, Car1 offers 34.5 cu ft of cargo space, significantly larger than Car2's 22 cu ft minimum, establishing clear technical advantages for the Kia.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Kia Sportage Plug-In Hybrid

The Kia Sportage PHEV is the superior commuter choice due to its 33 miles of electric range and higher 36 MPG combined efficiency, minimizing fuel stops.

👨‍👩‍👧‍👦 Best for Families

2026 Kia Sportage Plug-In Hybrid

Car1 offers significantly more usable space with 34.5 cu ft of cargo capacity compared to Car2's 22 cu ft.

🏎️ Best for Enthusiasts

2026 Kia Sportage Plug-In Hybrid

The Kia Sportage PHEV generates 268 hp and 271 lb-ft of torque, clearly outpacing the Mercedes-Benz GLB's 221 hp output.

💰 Best Value

2026 Kia Sportage Plug-In Hybrid

Car1 has a $3,310 lower MSRP, better fuel economy (36 MPG vs. 28 MPG), and uses regular unleaded fuel, resulting in superior long-term ownership economics.

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

You prioritize minimizing running costs, benefiting from 36 combined MPG and the ability to use regular unleaded fuel.
You require substantial hauling capability, evidenced by its 34.5 cu ft cargo capacity.
You seek the highest performance figures, delivering 268 hp via its hybrid system.

Choose the Mercedes-Benz GLB if...

A brand prestige is a deciding factor, aligning with the Mercedes-Benz badge.
You prefer an 8-speed automated manual transmission over Car1's 6-speed shiftable automatic.
You require front-wheel drive configuration instead of Car1's standard all-wheel drive system.

Key Dimensions

Dimension	Kia Sportage Plug-In Hybrid	Mercedes-Benz GLB
Length	184.4"	182.4"
Width	73.4"	72.2"
Height	66.9"	66.7"
Wheelbase	108.5"	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	✓	✓
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 Solid Disc Brakes	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
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	✓	✓
Brake Drying	—	✓
Brake Preparation System	—	✓
Headlight Delay-Off	—	✓
Front Fog Lights	—	✓

Engine

Feature	Kia	Mercedes-Benz
Base Engine Displacement	1.6 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	plug-in hybrid	mild hybrid
Horsepower	268 hp	221 hp @ 5500 rpm
Torque	271 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	all wheel drive	front wheel drive
Center Differential Type	Locking	—
Hill Descent Control	✓	—

Fuel

Feature	Kia	Mercedes-Benz
Fuel Type	regular unleaded	premium unleaded (required)
EPA Fuel Economy (City/Highway)	35/36 MPG	25/33 MPG
EPA Fuel Economy (Combined)	36 MPG	28 MPG
EPA Driving Range (City/Highway)	388.5/399.6 mi.	397.5/524.7 mi.
EPA Efficiency (City/Highway MPGe)	87/78 MPGe	—
EPA Efficiency (Combined MPGe)	83 MPGe	—
EPA Electric Driving Range	33 mi.	—
EPA Energy Consumption (kWh/100 mi)	43	—
Charging Time (240V)	2.0 hr.	—
Fuel Tank Capacity	11.1 gal.	15.9 gal.
DC Fast Charging Port Type	SAE J1772	—

Comfort & Convenience

Feature	Kia	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	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	—
Adaptive Cruise Control	✓	—
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Dual Zone Climate Control	✓	✓
Rear Ventilation Ducts	✓	✓
Interior Air Filtration	✓	✓
Extended Cabin Heating/Cooling	✓	—
Dual Vanity Mirrors	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Driver Assisted Parking Assist	—	✓
Cruise Control	—	✓
Overhead Console with Storage	—	✓
Auto-Dimming Rearview Mirror	—	✓

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	2	4
Moonroof Type	1st Row Power Glass Extended	—
Keyless Entry	✓	—
Heated Mirrors	✓	✓
Remote Keyless Entry	—	✓

Frontseats

Feature	Kia	Mercedes-Benz
Front Head Room	39.6 in.	40.7 in.
Front Leg Room	41.4 in.	41.1 in.
Front Shoulder Room	57.5 in.	55.9 in.
Front Hip Room	54.8 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 Manual Adjustments	4-way	—
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 Power Adjustments	—	8-way
Passenger Seat Height Adjustment	—	✓
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	39.5 in.	38.1 in.
Rear Shoulder Room	55.6 in.	54.9 in.
Rear Hip Room	53.4 in.	—
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	✓
Folding Center Armrest	✓	✓

Tires and Wheels

Feature	Kia	Mercedes-Benz
Wheel Finish	Painted Alloy	—
Wheel Size	19 x 7.5 in	18 x 7.5 in
Tire Type	All Season	—
Tire Size	235/55R19	235/55R18
Wheel Material	—	Alloy
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.	6 yr./ 62000 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 2026 Kia Sportage Plug-In Hybrid and 2026 Mercedes-Benz GLB.

What is the primary financial difference between the 2026 Sportage PHEV and the GLB?

The 2026 Kia Sportage PHEV has a notable MSRP advantage, starting at $40,490 compared to the Mercedes-Benz GLB's $43,800, representing a $3,310 saving upfront. Additionally, Car1's requirement for regular unleaded fuel lowers ongoing expenses compared to Car2's mandate for premium fuel.

How does the electric range of the Kia compare to the conventional efficiency of the Mercedes?

The Sportage PHEV offers a defined 33 miles of all-electric driving capability for zero-emission local trips. Once depleted, it reverts to a 36 MPG combined rating, significantly better than the GLB's 28 MPG combined rating.

Which crossover offers better capability for moving cargo?

The Kia Sportage PHEV provides substantially more cargo volume, measuring 34.5 cubic feet. The Mercedes-Benz GLB is considerably smaller in the rear, offering only 22 cubic feet of space for comparison.

Are the performance specifications better in the Kia or the Mercedes?

The Kia Sportage PHEV demonstrates superior output with 268 horsepower and 271 lb-ft of torque. The Mercedes-Benz GLB produces 221 hp and 258 lb-ft of torque, indicating the Kia holds a 47 hp advantage.

Do these vehicles share the same drivetrain philosophy?

No, they utilize different setups; the Kia Sportage PHEV is equipped with all-wheel drive and a 6-speed shiftable automatic transmission. Conversely, the Mercedes-Benz GLB uses a front-wheel drive configuration paired with an 8-speed automated manual transmission.

How do the physical dimensions differ between these two crossovers?

The Kia Sportage is marginally longer at 184.4 inches versus the GLB's 182.4 inches, and slightly wider at 73.4 inches compared to 72.2 inches. Height measurements are nearly identical, with the Kia at 66.9 inches.