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

$48,290 · Crossover

$43,800 · Crossover

Comparison Overview

The 2026 Kia Sorento Plug-In Hybrid bursts onto the scene with 261 hp and the compelling draw of 30 miles of pure electric range, promising efficient daily commutes for less cost at the pump. Conversely, the 2026 Mercedes-Benz GLB captivates with German prestige and a notably lower starting MSRP of $43,800, even though it demands premium unleaded fuel. While the Kia delivers superior efficiency at 33 combined MPG, the Benz counters with an impressive 22 cu ft of maximum cargo capacity—nearly double the Kia's 12.6 cu ft figure. Power delivery differs too; the Sorento PHEV offers 40 more horsepower than the GLB’s 221 hp output, though both manage 258 lb-ft of torque. This comparison pits cutting-edge hybrid tech and AWD dominance from the $48,290 Kia against the accessible luxury and superior cargo flexibility of the FWD Mercedes.

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 superior 33 combined MPG rating.

👨‍👩‍👧‍👦 Best for Families

2026 Mercedes-Benz GLB

The Mercedes-Benz GLB offers substantially more utility with 22 cu ft of cargo capacity compared to the Sorento's 12.6 cu ft.

🏎️ Best for Enthusiasts

2026 Kia Sorento Plug-In Hybrid

The Kia Sorento PHEV offers a significant advantage with 261 hp and standard All-Wheel Drive compared to the Mercedes' 221 hp and FWD setup.

💰 Best Value

2026 Mercedes-Benz GLB

Despite lower power, the GLB secures the value crown by having a $4,490 lower starting MSRP while still offering AWD capability as an option (though the base is FWD).

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

You prioritize maximum fuel economy, benefiting from the 33 combined MPG and 30 miles of electric-only driving.
You require the assured traction of All-Wheel Drive for varied weather conditions.
You want the stronger performance figures, utilizing the 261 horsepower advantage over the competitor.

Choose the Mercedes-Benz GLB if...

Budget is a primary concern, as the $43,800 MSRP undercuts the Sorento by $4,490.
You frequently haul cargo, taking advantage of the generous 22 cu ft capacity.
You prefer the refined experience associated with the Mercedes-Benz brand and an 8-speed automated manual transmission.

Key Dimensions

Dimension	Kia Sorento Plug-In Hybrid	Mercedes-Benz GLB
Length	189.6"	182.4"
Width	74.8"	72.2"
Height	66.9"	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	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Brake Drying	—	✓
Rear Solid Disc Brakes	—	✓
Brake Preparation System	—	✓

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	261 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	all wheel drive	front wheel drive
Center Differential Type	Limited Slip	—
Hill Descent Control	✓	—

Fuel

Feature	Kia	Mercedes-Benz
Fuel Type	regular unleaded	premium unleaded (required)
EPA Fuel Economy (City/Highway)	33/34 MPG	25/33 MPG
EPA Fuel Economy (Combined)	33 MPG	28 MPG
EPA Driving Range (City/Highway)	409.2/421.6 mi.	397.5/524.7 mi.
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.	—
Fuel Tank Capacity	12.4 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	✓	✓
3rd Row Cupholders	✓	—
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
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	✓	✓
Driver Assisted Parking Assist	—	✓
Cruise Control	—	✓
Overhead Console with Storage	—	✓
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	✓	✓
Remote Keyless Entry	—	✓

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	40.3 in.	38.1 in.
Rear Shoulder Room	58.1 in.	54.9 in.
Rear Hip Room	55.1 in.	—
Split-Folding Rear Seatback	✓	✓
Folding Center Armrest	✓	✓
Manual Folding Third Row Seat	✓	—
Reclining Rear Seats	—	✓

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
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
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 Sorento Plug-In Hybrid and 2026 Mercedes-Benz GLB.

Which crossover is more powerful for passing on the highway?

The 2026 Kia Sorento Plug-In Hybrid holds the edge here, delivering 261 hp, which is 40 horsepower more than the Mercedes-Benz GLB's 221 hp output. While both vehicles have identical torque figures at 258 lb-ft, the Kia’s higher horsepower should translate to more effortless acceleration when needed.

Is the Kia Sorento's plug-in capability worth the higher MSRP?

For city dwellers, the Kia's 30 miles of electric range is a major asset, potentially reducing gasoline use significantly if your daily commute is short. However, the Kia starts at $48,290, making it $4,490 more expensive than the standard GLB.

How significant is the difference in fuel consumption between the two?

The Kia offers superior fuel economy with a 33 combined MPG rating, whereas the Mercedes-Benz GLB achieves 28 combined MPG. Furthermore, the Kia runs on regular unleaded, potentially saving money compared to the GLB which requires premium fuel.

Which vehicle is better for hauling gear, the Kia Sorento or the Mercedes GLB?

The Mercedes-Benz GLB is substantially better for cargo, offering 22 cu ft of capacity. The Kia Sorento PHEV, constrained by its battery placement, offers only 12.6 cu ft of cargo space.

Do these vehicles require the same fuel?

No, the 2026 Kia Sorento PHEV uses regular unleaded fuel, while the 2026 Mercedes-Benz GLB explicitly requires premium unleaded fuel, which adds to its operational cost.

What is the primary difference in drivetrain capability?

The Kia Sorento PHEV comes standard with All-Wheel Drive, providing better traction in slippery conditions. The Mercedes-Benz GLB comes in a Front Wheel Drive configuration in its base trim listed.