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BYD Seal U vs Porsche Cayman comparison

Compare performance (324 HP vs 500 HP), boot space and price (34,300 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – BYD Seal U or Porsche Cayman?

BYD Seal U vs Porsche Cayman: Key differences

BYD Seal U

4.1 (7 Reviews)
rate
  • considerably cheaper
  • substantially more trunk space
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Porsche Cayman

  • visibly more power
  • considerably quicker 0–100 km/h
  • visibly lighter
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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

Seal U

Costs and Efficiency:

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

BYD Seal U is considerably cheaper – starting at 34,300 £ , while the Porsche Cayman costs 136,000 £ . That’s a price difference of around 101,751 £.

Cayman

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 Porsche Cayman offers visibly more power – delivering 500 HP compared to 324 HP. That’s roughly 176 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayman is considerably quicker – completing the sprint in 3.4 s, while the BYD Seal U takes 5.9 s. That’s about 2.5 s quicker.

There’s also a difference in torque: the BYD Seal U delivers somewhat more torque with 550 Nm compared to 450 Nm. That’s about 100 Nm more.

Seal U

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 Seal U offers more seats – 5 vs 2.

In terms of curb weight, Porsche Cayman is visibly lighter – 1,490 kg compared to 1,940 kg. The difference is around 450 kg.

Looking at boot space, the BYD Seal U offers substantially more boot space – 552 L compared to 184 L. That’s a difference of about 368 L.

When it comes to payload, the BYD Seal U carries noticeably more – 410 kg compared to 281 kg. That’s a difference of about 129 kg.

Who wins the race in the data check?

The BYD Seal U holds a decisive overall lead 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 £34,300
Seal U

BYD Seal U

  • Engine Type : Electric, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 218 - 324 HP
  • Consumption kWh/100km : 12.1 - 20.5 kWh/100km
  • Electric Range : 70 - 500 km
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Frequently compared as well

BYD Seal U
BYD Sealion 7
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The BYD Seal U brings crossover practicality and a higher driving position for buyers after everyday versatility, while the sleeker BYD Sealion 7 swaps that raised stance for a lower, sportier profile and crisper road manners. Choose the Seal U for family-friendly space and comfort, or the Sealion …
BYD Seal U
Toyota RAV4
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BYD Seal U is a sleek, driver‑focused electric newcomer that delivers brisk, silent acceleration, cutting‑edge tech and impressive running‑cost savings — it’s the car that makes you forget what an internal‑combustion soundtrack sounded like. The Toyota RAV4 sticks to its strengths: rugged, roomy …
BYD Seal U
Porsche Cayman

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BYD Seal U

The BYD Seal U pairs a sleek fastback silhouette with a surprisingly roomy, tech-rich cabin, giving electric chic without the showroom pretension. It's a smart pick for buyers after confident handling, sensible practicality and standout value — all wrapped up with a cheeky grin when you put your foot down.

details
BYD SEAL U 157
BYD SEAL U 061
BYD SEAL U 079

Reviews BYD Seal U

4.1 (7 Reviews)
rate
Emily
20 Jan 2026, 22:52:34

Broke down at 200 KM

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

Porsche Cayman

The Porsche Cayman stands out as a quintessential sports car, blending sleek design with dynamic handling. Its mid-engine layout provides an excellent balance and sharp agility that driving enthusiasts crave. Inside, the Cayman offers a refined and driver-focused interior, ensuring that every journey is an exhilarating experience.

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Reviews Porsche Cayman

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

Frequently compared as well

BYD Seal U
MG HS
VS
Fresh from BYD’s EV revolution, the sleek Seal U brings range, tech and bold styling to spar with the MG HS/EHS — MG’s faithful family crossover offered as a petrol and a plug‑in hybrid that plays the safe, sensible card. Which one gives you the best mix of space, running costs and grin‑per‑mile?
BYD Atto 3
BYD Seal U
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If you want a friendly, practical EV that looks like it drinks coffee in a hipster cafe and carries everything from groceries to weekend bikes, the BYD Atto 3 is the sensible, value-packed choice. The BYD Seal U, by contrast, dresses up the electric experience with sleeker lines, sharper handling …
BYD Seal U
BYD Seal
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The BYD Seal U trades the low-slung, swoopy charm of the BYD Seal for a taller, more practical shape — think crossover comfort, easier loading and a higher driving position without giving up the EV's brisk acceleration. If you want sportier looks and the slickest aero for maximum range, choose the …
BYD Seal U
BYD Seal 6
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Think of the BYD Seal U as the nimble, slightly sharper hatchback that’s happier darting through city streets, while the BYD Seal 6 is the sleeker, longer-legged cruiser built for relaxed motorway miles and extra range. If you want playful agility and everyday practicality go Seal U, but if …
BYD Seal U
Kia Sportage
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In one corner, the sleek, spoiler-tinged BYD Seal U — an electric fastback that flirts with sports-car dynamics while packing a tech-bomb of range and gadgets; in the other, the practical, ever-adaptable Kia Sportage — a compact SUV that blends comfort, space and sensible running costs into a tidy …
BYD Seal U
Lynk & Co 08
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The BYD Seal U feels like a sleek, tech‑forward EV with impressive performance-to-price ratio, while the Lynk & Co 08 plays the role of bold, spacious SUV that prioritizes comfort and presence. If you want sporty agility and cutting‑edge battery tech, go Seal U; if you need family practicality, …
BYD Seal U
Tesla Model Y
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The BYD Seal U punches above its price with a sleek fastback profile, surprisingly sporty handling and a tech-packed interior that makes it a compelling foil to the more familiar Tesla Model Y. If you prize Supercharger convenience, software polish and stronger resale you’ll gravitate to the Model …
BYD Seal U
Porsche Cayenne
VS
Put simply: the BYD Seal U is a slick, value-packed electric newcomer that trades brand pedigree for cutting-edge tech, impressive range and a price that makes you rethink running on petrol, while the Porsche Cayenne remains the benchmark for SUV dynamics, luxury and towing practicality with a …
BYD Seal U
Porsche Cayman

Costs and Consumption
Price
34,300 - 39,800 £
Price
136,000 £
Consumption L/100km
-
Consumption L/100km
13 L/100km
Consumption kWh/100km
12.1 - 20.5 kWh/100km
Consumption kWh/100km
-
Electric Range
70 - 500 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 - 71 g/km
co2
295 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
SUV
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
2
Curb weight
1,940 - 2,147 kg
Curb weight
1,490 kg
Trunk capacity
425 - 552 L
Trunk capacity
184 L
Length
-
Length
4,456 mm
Width
1,890 mm
Width
1,822 mm
Height
-
Height
1,267 mm
Max trunk capacity
-
Max trunk capacity
272 L
Payload
410 kg
Payload
281 kg

Engine and Performance
Engine Type
Electric, Plugin Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
218 - 324 HP
Power HP
500 HP
Acceleration 0-100km/h
5.9 - 9.6 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
315 km/h
Torque
300 - 550 Nm
Torque
450 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
160 - 238 kW
Power kW
368 kW
Engine capacity
1,497 - 1,498 cm3
Engine capacity
3,996 cm3

General
Model Year
2,024 - 2,026
Model Year
2021
CO2 Efficiency Class
A, B
CO2 Efficiency Class
G
Brand
BYD
Brand
Porsche
What drivetrain options does the BYD Seal U have?

The BYD Seal U is available as 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.