BYD Seal vs Hyundai Ioniq 6

Updated October 2026 · Real-world figures, not WLTP

BYD Seal

SEAL 82.5 kWh RWD Design (MY26)

£45,730 · 298 mi

Wins 6 of 12

Hyundai Ioniq 6

IONIQ 6 Long Range 2WD (MY23-25)

£47,050 · 308 mi

Wins 6 of 12

Our verdict

The BYD Seal and Hyundai Ioniq 6 are both electric saloons in the large car class. The BYD Seal starts at £45,730 in the UK and the Hyundai Ioniq 6 at £47,050, comparing the cheapest version of each.

The Seal has the bigger boot (557 litres against 446). On top of that, it is quicker, doing 0–62 mph in 5.9 s against 7.4 s and has the longer warranty (6 years against 5).

The Ioniq 6 goes further, with about 308 miles of real-world range against 298 for the Seal. On top of that, it charges faster on a rapid charger (196 kW against 100 kW on average, 10–80%) and uses less energy (4.2 mi/kWh against 3.6 mi/kWh).

There's little between them on price.

Choose the BYD Seal if you want more boot space and more performance and the Hyundai Ioniq 6 if you want the longest range and quicker charging stops.

Written from the figures below, comparing the cheapest UK version of each. Other versions can differ: open them in Compare to swap versions.

BYD SealHyundai Ioniq 6

Price

Price new: £45,730 (best)on sale now; £47,050on sale now
Used from (estimated): –too new; £15,2002022 car
Price per mile of range: £153; £153

Range and efficiency

Real-world range: 298 mi480 km, estimate; 308 mi (best)495 km
Range today, used (estimated): –; about 284 mi2022 car, est.
Efficiency: 3.6 mi/kWh172 Wh/km, estimate; 4.2 mi/kWh (best)149 Wh/km
Range with one 15-min stop: 315 mi507 km; 391 mi (best)630 km

Charging

Rapid charging: 100 kW10–80% average; 196 kW (best)10–80% average
Home (AC) charging: 11 kW; 11 kW
Charging plug: Type 2 CCS; Type 2 CCS
Vehicle-to-load (V2L): Yes; Yes
Vehicle-to-home (V2H): No; No
Vehicle-to-grid (V2G): No; No

Battery

Usable battery: 82.5 kWh (best); 74 kWhestimate
Battery chemistry: LFP (lithium iron phosphate); NCM (nickel manganese cobalt)
Heat pump: Yes; Yes

Body and performance

Body style: Saloon; Saloon
Size class: D · Large car; D · Large car
Seats: 5; 5
Drive: Rear-wheel drive; Rear-wheel drive
0–62 mph: 5.9 s (best)0–100 km/h; 7.4 s0–100 km/h
Weight: 2,130 kg; 1,985 kg

Size

Length: 4.80 m15 ft 9 in; 4.86 m15 ft 11 in
Width (without mirrors): 1.88 m6 ft 2 in; 1.88 m6 ft 2 in
Width with mirrors: 2.15 m7 ft 1 in; 2.07 m6 ft 10 in
Height: 1.46 m4 ft 9 in; 1.50 m4 ft 11 in
Wheelbase: 2.92 m9 ft 7 in; 2.95 m9 ft 8 in

Practicality and safety

Boot space: 557 litres (best); 446 litres
Towbar available: Yes; Yes
Towing (braked): 1,000 kg; 1,500 kg (best)
Max payload: 446 kgpeople and luggage; 500 kg (best)people and luggage
Euro NCAP rating: 5 stars; 5 stars

Warranty (UK)

Car warranty: 6 years (best)93,750 miles; 5 yearsunlimited miles
Battery warranty: 8 years (best)125,000 miles; 8 years100,000 miles, 70% capacity
Passes to next owner: Yes, with conditions; Yes

Availability

Status: On sale new; On sale new
Model years: 2026 on; 2022–2026

Green marks the better figure in each row. Range is a real-world estimate, not WLTP. Used prices are estimates. Warranty terms are UK terms from each maker’s website.