PlainEV

Hyundai Ioniq 6 vs Mercedes-Benz C-Class EV

· Real-world figures, not WLTP

Hyundai Ioniq 6
Photo: Kevauto, CC BY-SA 4.0

Hyundai Ioniq 6

IONIQ 6 Long Range 2WD (MY23-25)

£47,050 · 308 mi

Wins 5 of 15

the Mercedes-Benz CLA, not this car
Photo shows the Mercedes-Benz CLA, not this car.Photo: JustAnotherCarDesigner, CC0

Mercedes-Benz C-Class EV

C 400 4MATIC

£57,995 · 345 mi

Wins 10 of 15

Our verdict

The Hyundai Ioniq 6 and Mercedes-Benz C-Class EV are both electric saloons in the large car class. The Hyundai Ioniq 6 starts at £47,050 in the UK and the Mercedes-Benz C-Class EV at £57,995, comparing the cheapest version of each.

The Ioniq 6 is £10,945 cheaper to buy new (£47,050 against £57,995). On top of that, it charges faster on a rapid charger (196 kW against 190 kW on average, 10–80%), uses less energy (4.2 mi/kWh against 3.7 mi/kWh) and has the longer warranty (5 years against 3).

The C-Class EV goes further, with about 345 miles of real-world range against 308 for the Ioniq 6. On top of that, it has the bigger boot (571 litres against 446) and is quicker, doing 0–62 mph in 4.0 s against 7.4 s.

Choose the Hyundai Ioniq 6 if you want the lower price and quicker charging stops and the Mercedes-Benz C-Class EV if you want the longest range and more boot space.

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

Hyundai Ioniq 6Mercedes-Benz C-Class EV

Price

Price new
£47,050 (best)on sale now
£57,995on sale now
Used from (estimated)
£15,2002022 car
–too new
Price per mile of range
£153 (best)
£168

Range and efficiency

Real-world range
308 mi495 km
345 mi (best)555 km, estimate
Range today, used (estimated)
about 284 mi2022 car, est.
–
Efficiency
4.2 mi/kWh (best)149 Wh/km
3.7 mi/kWh169 Wh/km, estimate
Range with one 15-min stop
391 mi630 km
422 mi (best)679 km

Charging

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

Battery

Usable battery
74 kWhestimate
94 kWh (best)
Battery chemistry
NCM (nickel manganese cobalt)
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
All-wheel drive
0–62 mph
7.4 s0–100 km/h
4.0 s (best)0–100 km/h
Weight
1,985 kg
2,460 kg

Size

Length
4.86 m15 ft 11 in
4.88 m16 ft
Width (without mirrors)
1.88 m6 ft 2 in
1.89 m6 ft 2 in
Width with mirrors
2.07 m6 ft 10 in
–
Height
1.50 m4 ft 11 in
1.50 m4 ft 11 in
Wheelbase
2.95 m9 ft 8 in
2.96 m9 ft 9 in

Practicality and safety

Boot space
446 litres
571 litres (best)
Towbar available
Yes
Yes
Towing (braked)
1,500 kg
1,800 kg (best)
Max payload
500 kgpeople and luggage
580 kg (best)people and luggage
Euro NCAP rating
5 stars
–not tested yet

Warranty (UK)

Car warranty
5 years (best)unlimited miles
3 years
Battery warranty
8 years100,000 miles, 70% capacity
8 years100,000 miles
Passes to next owner
Yes
Not confirmed

Availability

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

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.

Every version

Hyundai Ioniq 6

Mercedes-Benz C-Class EV