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Hyundai IONIQ 5 vs Mercedes CLA Coupe comparison

Compare performance (229 HP vs 354 HP), boot space and price (43,300 £ vs 39,600 £ ) at a glance. Find out which car is the better choice for you – Hyundai IONIQ 5 or Mercedes CLA Coupe?

Hyundai IONIQ 5 vs Mercedes CLA Coupe: Key differences

Hyundai IONIQ 5

5 (2 Reviews)
rate
  • visibly more trunk space
details

Mercedes CLA Coupe

4.8 (2 Reviews)
rate
  • marginally cheaper
  • clearly more power
  • clearly more efficient
  • visibly more electric range
  • clearly quicker 0–100 km/h
  • moderately 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

IONIQ 5

Costs and Efficiency:

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

Mercedes CLA Coupe is marginally cheaper – starting at 39,600 £ , while the Hyundai IONIQ 5 costs 43,300 £ . That’s a price difference of around 3,692 £.

In terms of energy consumption, the Mercedes CLA Coupe is clearly more efficient: consuming 12.3 kWh/100km compared to 15.6 kWh/100km for the Hyundai IONIQ 5. That’s a difference of about 3.3 kWh/100km.

As for electric range, the Mercedes CLA Coupe offers visibly more range – reaching up to 792 km, about 222 km more than the Hyundai IONIQ 5.

CLA Coupe

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 Mercedes CLA Coupe offers clearly more power – delivering 354 HP compared to 229 HP. That’s roughly 125 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes CLA Coupe is clearly quicker – completing the sprint in 4.9 s, while the Hyundai IONIQ 5 takes 7.5 s. That’s about 2.6 s quicker.

There’s also a difference in torque: the Mercedes CLA Coupe delivers markedly more torque with 515 Nm compared to 350 Nm. That’s about 165 Nm more.

IONIQ 5

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes CLA Coupe is moderately lighter – 1,695 kg compared to 1,955 kg. The difference is around 260 kg.

Looking at boot space, the Hyundai IONIQ 5 offers visibly more boot space – 520 L compared to 405 L. That’s a difference of about 115 L.

When it comes to payload, the Hyundai IONIQ 5 carries a bit more – 530 kg compared to 455 kg. That’s a difference of about 75 kg.

Who wins the race in the data check?

The Mercedes CLA Coupe is clearly superior overall 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 £39,600
CLA Coupe

Mercedes CLA Coupe

  • Engine Type Electric, Full Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive, Front-Wheel Drive
  • Power HP 156 - 354 HP
  • Consumption L/100km 4.9 - 5.3 L/100km
  • Consumption kWh/100km 12.3 - 12.7 kWh/100km
  • Electric Range 542 - 792 km
Hyundai IONIQ 5
Mercedes CLA Coupe

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

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.

details

Mercedes CLA Coupe

The Mercedes CLA Coupe cuts a rakish silhouette that blends sporty coupe lines with everyday practicality, giving style-minded buyers a premium image without shouting. Inside it feels more luxurious than its size suggests, with a slick cabin, intuitive tech and a composed ride — the kind of car that parties in the city and still shows up polished on Sunday morning.

details
Hyundai IONIQ 5
Mercedes CLA Coupe

Costs and Consumption

Price
43,300 - 46,100 £
Price
39,600 - 60,000 £
Consumption L/100km
-
Consumption L/100km
4.9 - 5.3 L/100km
Consumption kWh/100km
15.6 - 16 kWh/100km
Consumption kWh/100km
12.3 - 12.7 kWh/100km
Electric Range
440 - 570 km
Electric Range
542 - 792 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 - 120 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
SUV
Body Type
Coupe
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,955 - 2,060 kg
Curb weight
1,695 - 2,135 kg
Trunk capacity
520 L
Trunk capacity
405 L
Length
-
Length
-
Width
1,890 mm
Width
1,855 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 530 kg
Payload
430 - 455 kg

Engine and Performance

Engine Type
Electric
Engine Type
Electric, Full Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive, Front-Wheel Drive
Power HP
170 - 229 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
7.5 - 8.5 s
Acceleration 0-100km/h
4.9 - 8.8 s
Max Speed
-
Max Speed
-
Torque
350 Nm
Torque
280 - 515 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
125 - 168 kW
Power kW
115 - 260 kW
Engine capacity
-
Engine capacity
1,499 cm3

General

Model Year
2025
Model Year
2,025 - 2,026
CO2 Efficiency Class
A
CO2 Efficiency Class
A, C, D
Brand
Hyundai
Brand
Mercedes-Benz
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.