@ Alfa Romeo / Stellantis Media
@ Mercedes-Benz Group Media
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Alfa Romeo Giulia vs Mercedes CLA Coupe - Differences and prices compared

Compare performance (210 HP vs 421 HP), boot space and price (48000 £ vs 37100 £) at a glance. Find out which car is the better choice for you – Alfa Romeo Giulia or Mercedes CLA Coupe?

Alfa Romeo Giulia

Mercedes CLA Coupe

4.9 (1 Reviews)
rate

You can find all user reviews further down on this page.

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

Giulia @ Alfa Romeo / Stellantis Media

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 CLA Coupe has a distinct advantage in terms of price – it starts at 37100 £, while the Alfa Romeo Giulia costs 48000 £. That’s a price difference of around 10898 £.

Fuel consumption also shows a difference: Mercedes CLA Coupe manages with 2.30 L and is therefore significantly more efficient than the Alfa Romeo Giulia with 5.40 L. The difference is about 3.10 L per 100 km.

CLA Coupe @ Mercedes-Benz Group Media

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes CLA Coupe has a clearly edge – offering 421 HP compared to 210 HP. That’s roughly 211 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes CLA Coupe is decisively quicker – completing the sprint in 4.10 s, while the Alfa Romeo Giulia takes 6.80 s. That’s about 2.70 s faster.

In terms of top speed, the Mercedes CLA Coupe performs slightly better – reaching 270 km/h, while the Alfa Romeo Giulia tops out at 235 km/h. The difference is around 35 km/h.

There’s also a difference in torque: Mercedes CLA Coupe pulls minimal stronger with 515 Nm compared to 470 Nm. That’s about 45 Nm difference.

Giulia @ Alfa Romeo / Stellantis Media

Space and Everyday Use:

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

Seats: offers more seating capacity – vs .

In curb weight, Mercedes CLA Coupe is slight lighter – 1505 kg compared to 1640 kg. The difference is around 135 kg.

In terms of boot space, the Alfa Romeo Giulia offers hardly perceptible more room – 480 L compared to 460 L. That’s a difference of about 20 L.

When it comes to payload, Alfa Romeo Giulia slight takes the win – 535 kg compared to 490 kg. That’s a difference of about 45 kg.

Who wins the race?

The Mercedes CLA Coupe proves to be leaves the rival little chance and therefore becomes our DriveDuel Champion!
Mercedes CLA Coupe is the better all-rounder in this comparison.

from about £37,100
CLA Coupe @ Mercedes-Benz Group Media

Mercedes CLA Coupe

  • Engine Type : Plugin Hybrid, Petrol MHEV, Diesel, Petrol, Electric
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 116 - 421 HP
  • Consumption L/100km : 2.3 - 8.9 L
  • Consumption kWh/100km : 12.2 - 12.6 kWh
  • Electric Range : 86 - 791 km
details
Alfa Romeo Giulia
Mercedes CLA Coupe

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Alfa Romeo Giulia

The Alfa Romeo Giulia captivates with its stunning Italian design and dynamic performance, representing a perfect blend of elegance and sportiness. Its engaging driving experience, characterised by precise handling and responsive steering, appeals to enthusiasts who crave the thrill of the road. Inside, the Giulia showcases a beautifully crafted interior that combines luxury with cutting-edge technology, making every journey a delight.

details
fca_germany_alfa_romeo_giulia_quadrifoglio_my2020_173-5ed608edc95c9 @ Alfa Romeo / Stellantis Media
fca_germany_alfa_romeo_giulia_quadrifoglio_my2020_222-5ed60a3d4d877 @ Alfa Romeo / Stellantis Media
fca_germany_alfa_romeo_giulia_quadrifoglio_my2020_127-5ed60851062af @ Alfa Romeo / Stellantis Media
giuliastelvioquadrifogliomy2023-5eb2ca0bb242d_5eb3d66ae7e99 @ Alfa Romeo / Stellantis Media
fca_germany_alfa_romeo_giulia_quadrifoglio_my2020_063-5ed6059fd7bec @ Alfa Romeo / Stellantis Media

Mercedes CLA Coupe

4.9 (1 Reviews)
rate

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
19C0225_069 @ Mercedes-Benz Group Media
19C0225_068 @ Mercedes-Benz Group Media
19C0225_067 @ Mercedes-Benz Group Media
19C0225_044 @ Mercedes-Benz Group Media

Reviews Alfa Romeo Giulia

Reviews Mercedes CLA Coupe

4.9 (1 Reviews)
rate
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

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Alfa Romeo Giulia
Mercedes CLA Coupe
Giulia @ Alfa Romeo / Stellantis Media
CLA Coupe @ Mercedes-Benz Group Media

Costs and Consumption
Price
48000 - 57000 £
Price
37100 - 73700 £
Consumption L/100km
5.40 L
Consumption L/100km
2.3 - 8.9 L
Consumption kWh/100km
-
Consumption kWh/100km
12.2 - 12.6 kWh
Electric Range
-
Electric Range
86 - 791 km
Battery Capacity
-
Battery Capacity
12.9 - 85 kWh
co2
141 g/km
co2
0 - 202 g/km
Fuel tank capacity
58 L
Fuel tank capacity
35 - 51 L

Dimensions and Body
Body Type
Sedan
Body Type
Coupe
Seats
5
Seats
5
Doors
4
Doors
4
Curb weight
1640 kg
Curb weight
1505 - 2135 kg
Trunk capacity
480 L
Trunk capacity
395 - 460 L
Length
4650 mm
Length
4692 - 4723 mm
Width
1860 mm
Width
1834 - 1857 mm
Height
1438 mm
Height
1404 - 1468 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
535 kg
Payload
440 - 490 kg

Engine and Performance
Engine Type
Diesel
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic, Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive, Rear-Wheel Drive
Power HP
210 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
6.80 s
Acceleration 0-100km/h
4.1 - 10 s
Max Speed
235 km/h
Max Speed
205 - 270 km/h
Torque
470 Nm
Torque
230 - 515 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
154 kW
Power kW
85 - 310 kW
Engine capacity
2143 cm3
Engine capacity
1332 - 1991 cm3

General
Model Year
2024 - 2025
Model Year
2024 - 2025
CO2 Efficiency Class
E
CO2 Efficiency Class
B, D, E, G, A
Brand
Alfa Romeo
Brand
Mercedes-Benz

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Is the Alfa Romeo Giulia offered with different drivetrains?

Available configurations include All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.