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Casalini 550 vs BYD Sealion 7 comparison

Compare performance (8 HP vs 530 HP), boot space and price (17,000 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – Casalini 550 or BYD Sealion 7?

Casalini 550 vs BYD Sealion 7: Key differences

Casalini 550

  • clearly cheaper
  • considerably lighter
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BYD Sealion 7

4.8 (5 Reviews)
rate
  • substantially more power
  • substantially 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

550

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.

Casalini 550 is clearly cheaper – starting at 17,000 £ , while the BYD Sealion 7 costs 42,800 £ . That’s a price difference of around 25,817 £.

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 substantially more power – delivering 530 HP compared to 8 HP. That’s roughly 522 HP more horsepower.

There’s also a difference in torque: the BYD Sealion 7 delivers substantially more torque with 690 Nm compared to 28 Nm. That’s about 662 Nm more.

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.

Seats: BYD Sealion 7 offers more seats – 5 vs 2.

In terms of curb weight, Casalini 550 is considerably lighter – 425 kg compared to 2,225 kg. The difference is around 1,800 kg.

Looking at boot space, the BYD Sealion 7 offers substantially more boot space – 520 L compared to 0 L. That’s a difference of about 520 L.

When it comes to payload, the BYD Sealion 7 carries clearly more – 410 kg compared to 273 kg. That’s a difference of about 137 kg.

Who wins the race in the data check?

The Casalini 550 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 £17,000
550

Casalini 550

  • Engine Type Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 8 HP
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Casalini 550
BYD Sealion 7

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Casalini 550

The Casalini 550 is a compact city runabout that packs surprising practicality into a tiny footprint, making parking a breeze and daily errands almost enjoyable. It won't wow on long highway blasts, but for shopping trips and short commutes it's a clever, affordable alternative to a full-size car — proof that you don't need a giant wallet to get where you need to go.

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Reviews Casalini 550

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

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

4.8 (5 Reviews)
rate
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
Safety
Practicality / Trunk & Everyday Use
Value for Money
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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Casalini 550
BYD Sealion 7

Costs and Consumption
Price
17,000 - 17,100 £
Price
42,800 - 52,300 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
-
Electric Range
456 - 502 km
Battery Capacity
-
Battery Capacity
-
co2
-
co2
0 g/km
Fuel tank capacity
20 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
2
Seats
5
Doors
3
Doors
-
Curb weight
425 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
0 L
Trunk capacity
520 L
Length
3,000 mm
Length
-
Width
1,500 mm
Width
1,925 mm
Height
1,470 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
273 kg
Payload
410 kg

Engine and Performance
Engine Type
Diesel
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
CVT
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
8 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
-
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
45 km/h
Max Speed
-
Torque
28 Nm
Torque
380 - 690 Nm
Number of Cylinders
2
Number of Cylinders
-
Power kW
6 kW
Power kW
230 - 390 kW
Engine capacity
479 cm3
Engine capacity
-

General
Model Year
2022
Model Year
2024
CO2 Efficiency Class
-
CO2 Efficiency Class
A
Brand
Casalini
Brand
BYD
What drive types are available for the Casalini 550?

Available configurations include 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.