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Mercedes CLA Coupe vs SEAT Leon comparison

Compare performance (354 HP vs 272 HP), boot space and price (39,600 £ vs 24,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes CLA Coupe or SEAT Leon?

Mercedes CLA Coupe vs SEAT Leon: Key differences

Mercedes CLA Coupe

4.8 (2 Reviews)
rate
  • clearly more power
  • clearly more electric range
  • considerably quicker 0–100 km/h
  • barely more trunk space
details

SEAT Leon

4.4 (2 Reviews)
rate
  • significantly cheaper
  • significantly more efficient
  • markedly 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

CLA Coupe

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

SEAT Leon is significantly cheaper – starting at 24,800 £ , while the Mercedes CLA Coupe costs 39,600 £ . That’s a price difference of around 14,831 £.

Fuel consumption also shows a difference: the SEAT Leon uses 1.2 L/100km and is significantly more efficient than the Mercedes CLA Coupe with 4.9 L/100km. The difference is about 3.7 L/100km.

As for electric range, the Mercedes CLA Coupe offers clearly more range – reaching up to 792 km, about 659 km more than the SEAT Leon.

Leon

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 272 HP. That’s roughly 82 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes CLA Coupe is considerably quicker – completing the sprint in 4.9 s, while the SEAT Leon takes 7.7 s. That’s about 2.8 s quicker.

There’s also a difference in torque: the Mercedes CLA Coupe delivers visibly more torque with 515 Nm compared to 360 Nm. That’s about 155 Nm more.

CLA Coupe

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, SEAT Leon is markedly lighter – 1,344 kg compared to 1,695 kg. The difference is around 351 kg.

Looking at boot space, the Mercedes CLA Coupe offers barely more boot space – 405 L compared to 380 L. That’s a difference of about 25 L.

When it comes to payload, the SEAT Leon carries a bit more – 521 kg compared to 455 kg. That’s a difference of about 66 kg.

Who wins the race in the data check?

The SEAT Leon stands well ahead of its rival 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 £24,800
Leon

SEAT Leon

  • Engine Type Petrol, Petrol MHEV, Plugin Hybrid, Diesel
  • Transmission Manuel, Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 116 - 272 HP
  • Consumption L/100km 1.2 - 5.5 L/100km
  • Electric Range 133 km
details

Frequently compared as well

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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
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Reviews Mercedes CLA Coupe

4.8 (2 Reviews)
rate
marco
12 Mar 2026, 18:44:45

A car with a unique line — the shooting brake finally gets a sporty rear and a roomy trunk.

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
Dejf
18 Dec 2025, 14:59:40

Nice efficient car. Like it

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

SEAT Leon

SEAT Leon pairs sharp, modern styling with a cabin that's sensible and slightly sporty, making it an appealing choice for buyers who want flair without fuss. It drives with eager composure and offers a neat balance of comfort and agility, so you get everyday usability with a wink of fun.

details
Small-33980-LeonSEDynamic-MysteryBlue
Small-33989-LeonSEDynamic-MysteryBlue
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Small-35510-SEATLeonkeepsWhatCarAwardinthefamily

Reviews SEAT Leon

4.4 (2 Reviews)
rate
FaBio
4 Jan 2026, 21:30:20

Mechanically the car is fairly well built, apart from the rear axle.
The air conditioning is effective and visibility is good, while the FR setup paired with the 18" wheels, in my view, hurts comfort — getting in and out can be awkward. Once on board, though, the seats are very comfortable. The infotainment is comprehensive, with a generously sized screen and full-link smartphone connectivity; the factory sat-nav does what it can, but obviously Maps is superior in every way.
All in all, a fun/sporty car that also winks at family life thanks to a roomy boot and modest fuel consumption.

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

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Mercedes CLA Coupe
SEAT Leon

Costs and Consumption
Price
39,600 - 60,000 £
Price
24,800 - 36,800 £
Consumption L/100km
4.9 - 5.3 L/100km
Consumption L/100km
1.2 - 5.5 L/100km
Consumption kWh/100km
12.3 - 12.7 kWh/100km
Consumption kWh/100km
-
Electric Range
542 - 792 km
Electric Range
133 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 120 g/km
co2
28 - 126 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Coupe
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,695 - 2,135 kg
Curb weight
1,344 - 1,657 kg
Trunk capacity
405 L
Trunk capacity
270 - 380 L
Length
-
Length
-
Width
1,855 mm
Width
1,799 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
430 - 455 kg
Payload
473 - 521 kg

Engine and Performance
Engine Type
Electric, Full Hybrid
Engine Type
Petrol, Petrol MHEV, Plugin Hybrid, Diesel
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive, Front-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
156 - 354 HP
Power HP
116 - 272 HP
Acceleration 0-100km/h
4.9 - 8.8 s
Acceleration 0-100km/h
7.7 - 10.5 s
Max Speed
-
Max Speed
-
Torque
280 - 515 Nm
Torque
220 - 360 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
115 - 260 kW
Power kW
85 - 200 kW
Engine capacity
1,499 cm3
Engine capacity
1,498 - 1,968 cm3

General
Model Year
2,025 - 2,026
Model Year
2,024 - 2,026
CO2 Efficiency Class
A, C, D
CO2 Efficiency Class
D, B
Brand
Mercedes-Benz
Brand
SEAT
What drivetrain options does the Mercedes CLA Coupe have?

The Mercedes CLA Coupe is available as Rear-Wheel Drive, All-Wheel Drive or Front-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.