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Mercedes B Class vs Kia EV6 comparison

Compare performance (238 HP vs 609 HP), boot space and price (33,100 £ vs 38,600 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or Kia EV6?

Mercedes B Class vs Kia EV6: Key differences

Mercedes B Class

4.9 (5 Reviews)
rate
  • slightly cheaper
  • markedly lighter
details

Kia EV6

5 (3 Reviews)
rate
  • substantially more power
  • considerably quicker 0–100 km/h
  • very slightly more trunk space
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

Here’s where it gets real: The technical differences in detail

B Class

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mercedes B Class is slightly cheaper – starting at 33,100 £ , while the Kia EV6 costs 38,600 £ . That’s a price difference of around 5,433 £.

EV6

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Kia EV6 offers substantially more power – delivering 609 HP compared to 238 HP. That’s roughly 371 HP more horsepower.

When accelerating from 0 to 100 km/h, the Kia EV6 is considerably quicker – completing the sprint in 3.5 s, while the Mercedes B Class takes 6.5 s. That’s about 3 s quicker.

There’s also a difference in torque: the Kia EV6 delivers substantially more torque with 770 Nm compared to 400 Nm. That’s about 370 Nm more.

B Class

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes B Class is markedly lighter – 1,405 kg compared to 1,955 kg. The difference is around 550 kg.

Looking at boot space, the Kia EV6 offers very slightly more boot space – 490 L compared to 455 L. That’s a difference of about 35 L.

When it comes to payload, the Mercedes B Class carries a bit more – 550 kg compared to 450 kg. That’s a difference of about 100 kg.

Who wins the race in the data check?

The Kia EV6 is decisively ahead in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £38,600
EV6

Kia EV6

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 170 - 609 HP
  • Consumption kWh/100km 15.9 - 20.9 kWh/100km
  • Electric Range 428 - 582 km
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Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class and Mercedes GLA target buyers who want Mercedes practicality with premium touches, but they take different paths: the B‑Class is a spacious, hatchback-style people carrier while the GLA is a compact crossover with a higher ride height and sportier stance. This comparison looks …
Mercedes A Class
Mercedes B Class
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The Mercedes A‑Class is the sporty, tech‑savvy compact that thrills with sharp handling and a slick cockpit, while the Mercedes B‑Class trades a bit of attitude for towering practicality, roomier seats and a more useful boot. Choose the A‑Class if you want driving fun and style; pick the B‑Class if …
Mercedes B Class
Kia EV6

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes B Class

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
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Reviews Mercedes B Class

4.9 (5 Reviews)
rate
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Kia EV6

The Kia EV6 looks like it sprinted off a concept stage, its bold, futuristic lines wrapping a surprisingly spacious and grown-up cabin. On the road it delivers crisp, immediate thrust and composed handling, with enough everyday practicality and slick tech to make ditching petrol feel like an upgrade rather than a compromise.

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Reviews Kia EV6

5 (3 Reviews)
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María Cardoso
11 Feb 2026, 06:43:58

I love this car — it moves super fast, makes me feel safe and wonderfully agile, like it’s got the power of a gasoline V8.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Janek
4 Feb 2026, 14:52:37

Great for city and recreational driving. Highway speeds and winter reveal its appetite for electricity — range drops quickly. The low beams could be brighter; the high beam is potent! Other than that, the car really pampers you.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Frequently compared as well

Kia EV6
Kia EV4 Hatchback
VS
If you're torn between the Kia EV6 and the cheeky new EV4 Hatchback, the EV6 drives like a GT‑styled cruiser with longer range, sharper handling and room for weekend gear, while the EV4 is a city‑smart, pocketable hatch that makes parking a joy and running costs kinder on the wallet. Choose the EV6 …
Kia EV6
Kia EV5
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The Kia EV6 is the sleek, sporty crossover that doubles as an EV driver's toy — rapid off the line, long‑legged on the motorway and bristling with tech that feels a step ahead. The Kia EV5 dials down the drama for everyday sense: a roomier, more affordable and practical compact SUV that will appeal …
BMW 2 Series Active Tourer
Mercedes B Class
VS
The BMW 2 Series Active Tourer and the Mercedes B‑Class are the two leading compact MPVs for buyers who need practical space without the bulk of an SUV. The 2 Series Active Tourer leans toward a driver-focused, sharper feel, while the B‑Class prioritizes passenger comfort, flexible packaging and a …
Kia EV6
VW ID.7
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Kia EV6
Toyota C-HR+
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The Kia EV6 and Toyota C‑HR represent two very different takes on modern crossovers: the EV6 is a sleek, all‑electric, performance‑oriented hatch, while the C‑HR is a compact, style‑focused crossover often offered with hybrid powertrains. Choosing between them comes down to whether you prioritize …
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Kia EV6
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Mercedes B Class
Volvo XC40
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In a head-to-head comparison, the Mercedes B-Klasse and Volvo XC40 each present unique appeals to different driving preferences. The Mercedes B-Klasse, with its refined elegance and advanced technology, offers a smooth ride and functional versatility ideal for families. On the other hand, the Volvo …
Mercedes B Class
Kia EV6

Costs and Consumption
Price
33,100 - 52,500 £
Price
38,600 - 60,000 £
Consumption L/100km
5.1 - 6.9 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
15.9 - 20.9 kWh/100km
Electric Range
-
Electric Range
428 - 582 km
Battery Capacity
-
Battery Capacity
-
co2
133 - 156 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,405 - 1,565 kg
Curb weight
1,955 - 2,220 kg
Trunk capacity
445 - 455 L
Trunk capacity
480 - 490 L
Length
-
Length
-
Width
1,796 mm
Width
1,880 - 1,890 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 550 kg
Payload
440 - 450 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
116 - 238 HP
Power HP
170 - 609 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
3.5 - 8.7 s
Max Speed
-
Max Speed
-
Torque
200 - 400 Nm
Torque
350 - 770 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 175 kW
Power kW
125 - 448 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2,024 - 2,025
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
Kia
What drivetrain options does the Mercedes B Class have?

Available configurations include Front-Wheel Drive or All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.