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BMW Z4 vs Mercedes A Class comparison

Compare performance (340 HP vs 421 HP), boot space and price (43,500 £ vs 32,600 £ ) at a glance. Find out which car is the better choice for you – BMW Z4 or Mercedes A Class?

BMW Z4 vs Mercedes A Class: Key differences

BMW Z4

4.4 (1 Reviews)
rate
details

Mercedes A Class

2.7 (1 Reviews)
rate
  • markedly cheaper
  • slightly more power
  • clearly more efficient
  • slightly quicker 0–100 km/h
  • very slightly lighter
  • a bit more trunk space
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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

Z4

Costs and Efficiency:

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

Mercedes A Class is markedly cheaper – starting at 32,600 £ , while the BMW Z4 costs 43,500 £ . That’s a price difference of around 10,889 £.

Fuel consumption also shows a difference: the Mercedes A Class uses 2.3 L/100km and is clearly more efficient than the BMW Z4 with 6.9 L/100km. The difference is about 4.6 L/100km.

A 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 Mercedes A Class offers slightly more power – delivering 421 HP compared to 340 HP. That’s roughly 81 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes A Class is slightly quicker – completing the sprint in 3.9 s, while the BMW Z4 takes 4.5 s. That’s about 0.6 s quicker.

Both models offer the same torque – 500 Nm.

Z4

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Seats: Mercedes A Class offers more seats – 5 vs 2.

In terms of curb weight, Mercedes A Class is very slightly lighter – 1,440 kg compared to 1,510 kg. The difference is around 70 kg.

Looking at boot space, the Mercedes A Class offers a bit more boot space – 350 L compared to 281 L. That’s a difference of about 69 L.

When it comes to payload, the Mercedes A Class carries substantially more – 485 kg compared to 235 kg. That’s a difference of about 250 kg.

Who wins the race in the data check?

The Mercedes A Class is decisively ahead 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 £32,600
A Class

Mercedes A Class

  • Engine Type : Petrol MHEV, Diesel, Plugin Hybrid, Petrol
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 421 HP
  • Consumption L/100km : 2.3 - 9 L/100km
  • Electric Range : 85 km
details

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 …
Mercedes A Class
Mercedes GLA
VS
The Mercedes A‑Class is the sharper, more driver-focused hatch that feels nimble and refined on twisty roads, while the Mercedes GLA trades a bit of agility for SUV practicality with a higher ride height, extra luggage space and a commanding view of the road. Pick the A‑Class for sporty handling, …
BMW Z4
Mercedes A Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW Z4

The BMW Z4 is a taut, road-hugging roadster that pairs elegant, low-slung styling with a roof you can drop on a sunny whim, delivering that pure, wind-in-your-hair driving thrill few cars manage to match. It’s an ideal weekend companion for drivers who prefer engagement over practicality — bring good shoes rather than a lot of luggage, and you’ll get a grin every time you turn the wheel.

details
P90479448_highRes_bmw-z4-m40i-09-2022
P90479454_highRes_bmw-z4-m40i-09-2022
P90479457_highRes_bmw-z4-m40i-09-2022
P90479470_highRes_bmw-z4-m40i-09-2022
P90479471_highRes_bmw-z4-m40i-09-2022

Reviews BMW Z4

4.4 (1 Reviews)
rate
Maingard
26 Apr 2026, 13:19:10

Responsive car, very high-performing, very agile in corners.

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

Mercedes A Class

The Mercedes A‑Class arrives as a compact charmer that dresses premium materials and a cockpit full of screens in a tidy, city-friendly package, delivering surprising agility and poise. For buyers who want a luxury badge, clever tech and a car that's equally happy in tight streets or on a spirited country run, the A‑Class offers a grown-up feel with a cheeky streak.

details
18C0292_008
18C0292_010
18C0292_042
18C0291_067
18C0122_04

Reviews Mercedes A Class

2.7 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

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BMW Z4
Mercedes A Class

Costs and Consumption
Price
43,500 - 65,300 £
Price
32,600 - 66,500 £
Consumption L/100km
6.9 - 8.5 L/100km
Consumption L/100km
2.3 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
85 km
Battery Capacity
-
Battery Capacity
-
co2
157 - 191 g/km
co2
53 - 205 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Hatchback
Seats
2
Seats
5
Doors
-
Doors
-
Curb weight
1,510 - 1,640 kg
Curb weight
1,440 - 1,695 kg
Trunk capacity
281 L
Trunk capacity
310 - 350 L
Length
-
Length
-
Width
1,864 mm
Width
1,796 - 1,850 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
215 - 235 kg
Payload
450 - 485 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Petrol MHEV, Diesel, Plugin Hybrid, Petrol
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
197 - 340 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
4.5 - 6.8 s
Acceleration 0-100km/h
3.9 - 9.7 s
Max Speed
-
Max Speed
-
Torque
320 - 500 Nm
Torque
200 - 500 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
145 - 250 kW
Power kW
85 - 310 kW
Engine capacity
1,998 - 2,998 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,025 - 2,026
Model Year
2025
CO2 Efficiency Class
F, G
CO2 Efficiency Class
D, E, B, G
Brand
BMW
Brand
Mercedes-Benz
Is the BMW Z4 offered with different drivetrains?

The BMW Z4 is available as Rear-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.