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Mercedes B Class vs Hyundai IONIQ 5 comparison

Compare performance (238 HP vs 229 HP), boot space and price (33,100 £ vs 43,300 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or Hyundai IONIQ 5?

Mercedes B Class vs Hyundai IONIQ 5: Key differences

Mercedes B Class

4.9 (5 Reviews)
rate
  • clearly cheaper
  • only slightly more power
  • moderately quicker 0–100 km/h
  • noticeably lighter
details

Hyundai IONIQ 5

5 (2 Reviews)
rate
  • 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:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes B Class is clearly cheaper – starting at 33,100 £ , while the Hyundai IONIQ 5 costs 43,300 £ . That’s a price difference of around 10,199 £.

IONIQ 5

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 Mercedes B Class offers only slightly more power – delivering 238 HP compared to 229 HP. That’s roughly 9 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes B Class is moderately quicker – completing the sprint in 6.5 s, while the Hyundai IONIQ 5 takes 7.5 s. That’s about 1 s quicker.

There’s also a difference in torque: the Mercedes B Class delivers slightly more torque with 400 Nm compared to 350 Nm. That’s about 50 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 noticeably lighter – 1,405 kg compared to 1,955 kg. The difference is around 550 kg.

Looking at boot space, the Hyundai IONIQ 5 offers slightly more boot space – 520 L compared to 455 L. That’s a difference of about 65 L.

When it comes to payload, the Mercedes B Class carries only slightly more – 550 kg compared to 530 kg. That’s a difference of about 20 kg.

Who wins the race in the data check?

The Hyundai IONIQ 5 holds a slight edge 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 £43,300
IONIQ 5

Hyundai IONIQ 5

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive
  • Power HP 170 - 229 HP
  • Consumption kWh/100km 15.6 - 16 kWh/100km
  • Electric Range 440 - 570 km
details

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 …
Hyundai IONIQ 5
Kia EV3
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Mercedes B Class
Hyundai IONIQ 5

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.

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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

Hyundai IONIQ 5

The Hyundai IONIQ 5 looks like a spaceship that moved into suburbia, pairing bold retro‑futuristic styling with a roomy, cleverly laid-out cabin that makes long trips surprisingly comfortable. Its electric character delivers instant, silky acceleration and low running costs, making it a smart, slightly cheeky pick for buyers who want tech, practicality and personality without the drama.

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Reviews Hyundai IONIQ 5

5 (2 Reviews)
rate
Javi Rodman
4 Jan 2026, 17:25:22

The best of the best. Comfortable, practical, economical, fun, spacious, with all the ADAS and safety systems. What more could you ask for?

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

Frequently compared as well

Mercedes A Class
Mercedes B Class
VS
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 …
Hyundai IONIQ 5
Volvo EX60
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BMW 2 Series Active Tourer
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Mercedes B Class
Hyundai IONIQ 5

Costs and Consumption
Price
33,100 - 52,500 £
Price
43,300 - 46,100 £
Consumption L/100km
5.1 - 6.9 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
15.6 - 16 kWh/100km
Electric Range
-
Electric Range
440 - 570 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 - 2,060 kg
Trunk capacity
445 - 455 L
Trunk capacity
520 L
Length
-
Length
-
Width
1,796 mm
Width
1,890 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 550 kg
Payload
515 - 530 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
Power HP
116 - 238 HP
Power HP
170 - 229 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
7.5 - 8.5 s
Max Speed
-
Max Speed
-
Torque
200 - 400 Nm
Torque
350 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 175 kW
Power kW
125 - 168 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
Hyundai
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.