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Kia EV6 vs Mercedes B Class comparison

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

Kia EV6 vs Mercedes B Class: Key differences

Kia EV6

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

Mercedes B Class

4.9 (5 Reviews)
rate
  • a bit cheaper
  • clearly lighter
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

EV6

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

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

B Class

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Kia EV6 offers considerably 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.

EV6

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes B Class is clearly 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 moderately 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 holds a decisive overall lead 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
details

Frequently compared as well

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 …
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Kia EV6
Mercedes B Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

details
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Kia_EV6_PETD_48
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Kia_EV6_Int_09
Kia_EV6_Int_02

Reviews Kia EV6

5 (3 Reviews)
rate
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

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

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Kia EV6
Mercedes B Class

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

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

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

General
Model Year
2,024 - 2,025
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
D, E, F
Brand
Kia
Brand
Mercedes-Benz
What drivetrain options does the Kia EV6 have?

Available configurations include Rear-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.