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Mercedes A Class vs BYD Sealion 7 comparison

Compare performance (421 HP vs 530 HP), boot space and price (32,600 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes A Class or BYD Sealion 7?

Mercedes A Class vs BYD Sealion 7: Key differences

Mercedes A Class

3.6 (2 Reviews)
rate
  • visibly cheaper
  • moderately quicker 0–100 km/h
  • considerably lighter
details

BYD Sealion 7

4.7 (6 Reviews)
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  • clearly more power
  • clearly more electric range
  • markedly 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.

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

A Class

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 visibly cheaper – starting at 32,600 £ , while the BYD Sealion 7 costs 42,800 £ . That’s a price difference of around 10,280 £.

As for electric range, the BYD Sealion 7 offers clearly more range – reaching up to 502 km, about 417 km more than the Mercedes A Class.

Sealion 7

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 BYD Sealion 7 offers clearly more power – delivering 530 HP compared to 421 HP. That’s roughly 109 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes A Class is moderately quicker – completing the sprint in 3.9 s, while the BYD Sealion 7 takes 4.5 s. That’s about 0.6 s quicker.

There’s also a difference in torque: the BYD Sealion 7 delivers visibly more torque with 690 Nm compared to 500 Nm. That’s about 190 Nm more.

A Class

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 A Class is considerably lighter – 1,440 kg compared to 2,225 kg. The difference is around 785 kg.

Looking at boot space, the BYD Sealion 7 offers markedly more boot space – 520 L compared to 350 L. That’s a difference of about 170 L.

When it comes to payload, the Mercedes A Class carries a bit more – 485 kg compared to 410 kg. That’s a difference of about 75 kg.

Who wins the race in the data check?

The BYD Sealion 7 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 £42,800
Sealion 7

BYD Sealion 7

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 313 - 530 HP
  • Consumption kWh/100km 19.9 - 21.9 kWh/100km
  • Electric Range 456 - 502 km
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Frequently compared as well

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Mercedes A Class
BYD Sealion 7

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

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Reviews Mercedes A Class

3.6 (2 Reviews)
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Koldo
14 Jul 2026, 15:39:26

It's an elegant and understated car. Excellent material finishes; its two screens are very convenient for driving. Very good acceleration and braking response, great stability and good handling in corners. Good nighttime lighting, a safe, comfortable car and a pleasure to drive and travel in. My car is the A‑Class 200d. Kind regards.

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

BYD Sealion 7

The BYD Sealion 7 is a sleek electric wagon that blends sporty styling with surprising practicality, making it a compelling choice for drivers who want something different from the usual hatchback or SUV. Its refined interior and composed road manners give it an upscale feel, while clever packaging keeps it versatile for daily use.

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Reviews BYD Sealion 7

4.7 (6 Reviews)
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Overall impressions are strongly positive: owners often praise the Sealion 7 for its attractive design, high-quality interior and comfortable, spacious cabin, and frequently highlight its brisk performance and good specification. Common positives include a premium-feeling finish, roomy seats and strong acceleration; some owners note faster battery drain at sustained high speeds, a few have experienced radio/firmware issues that were later fixed, and there’s occasional comment about charging guidance and range expectations. So far the feedback is consistently favorable but relatively concise, so prospective buyers should verify real-world motorway range and ensure the car’s software and charging recommendations are up to date.
Ian
15 Sept 2026, 18:08:05

Well specified, very quick and reasonably efficient. Motorway speeds run the battery down rapidly probably because the car is heavy. Space inside is generous and the seats are comfortable. A decent choice at the price in Ireland (€58k) There have been issues with poir radio reception but four(!) software upgrades fixed them.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Andre Plambeck
29 Jul 2026, 06:52:22

Several tests have said that the quality on the outside and especially inside is on par with the German premium brands, if not even higher.
I can confirm that. Incredible for this price.
At 2.4t it's not a corner-carving car. Still, the driving performance is impressive. Compared with my Tiguan Biturbo 240PS, fuel/charging needs have been cut in half.
Consumption and range always depend on the driver. Whether electric or internal combustion. Anyone who drives an EV changes their thinking. Charge when possible, not always only when necessary. Many supermarkets, McDonald's, etc. already have charging options. While eating or shopping, plug in, done. The car is parked anyway. No extra time!
If I think just of the DSG start with that one-second hesitation... that doesn't exist with an EV.
You have to experience it. You don't need 500 hp for that.
I drive the BYD Sealion 7 'Excellence' and I'm mega satisfied

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Rafael Serres Ferran
19 Jul 2026, 17:30:51

A much better vehicle than the 6. It beats it in practically every area. Faster, more room inside, better trunk, more comfortable

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
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Practicality / Trunk & Everyday Use
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Steinbach
2 Jun 2026, 11:36:25

Fantastic car in every respect. Looks, interior, power, range, comfort, finish, etc.

How do you mainly use this car? (optional): Company car / Business
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
oriol
27 Feb 2026, 15:33:27

range that I can always charge to 100% — unlike other brands that told me it was recommended to stop at 80%, which consequently cut my real range from 600 to 480 by not being able to charge to 100%. I think that's something people should know.

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

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Mercedes A Class
BYD Sealion 7

Costs and Consumption
Price
32,600 - 66,500 £
Price
42,800 - 52,300 £
Consumption L/100km
2.3 - 9 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
85 km
Electric Range
456 - 502 km
Battery Capacity
-
Battery Capacity
-
co2
53 - 205 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,440 - 1,695 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
310 - 350 L
Trunk capacity
520 L
Length
-
Length
-
Width
1,796 - 1,850 mm
Width
1,925 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
450 - 485 kg
Payload
410 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel, Plug-in Hybrid, Petrol
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, All-Wheel Drive
Power HP
116 - 421 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
3.9 - 9.7 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
-
Max Speed
-
Torque
200 - 500 Nm
Torque
380 - 690 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 310 kW
Power kW
230 - 390 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2024
CO2 Efficiency Class
D, E, B, G
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
BYD
Is the Mercedes A Class offered with different drivetrains?

The Mercedes A Class is offered with 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.