BMW i3 vs Mercedes C-Class Electric vs Hyundai Ioniq 6: big test for the 3 Series EV

However, you need the optional air suspension for the ultimate in luxury, and that bumps up an already steep asking price. It will 
be interesting to see how lower-spec versions fare.

Third place: Hyundai Ioniq 6

Third place is no disgrace for the Ioniq 6 in this test. The 2026 updates have boosted its looks, and if you want to stand out from the crowd, it’s a great-value way of doing so, with lots of kit, decent efficiency and a long driving range all in its favour.

However, the Hyundai feels like it’s a generation behind the other two cars in terms of tech and driving involvement. There’s a sporty edge to its character, but it’s not as engaging as the BMW, while the firm ride mars overall comfort.

Prices and specs

Model tested  i3 50 xDrive M Sport First Ed.  C 400 4MATIC AMG Line Prem. Plus Ioniq 6 N Line Evo AWD
Price from/as tested £47,925/£58,535 £57,995/£69,125 £33,240/£46,960
       
     
Powertrain/power/torque 2x e-motors/463bhp/645Nm 2x e-motors/482bhp/800Nm 2x e-motors/321bhp/605Nm
Transmission Single-speed/4WD Two-speed/4WD  Single-speed/4WD
0-62mph/top speed 4.7 seconds/124mph 4.0 seconds/130mph 5.1 seconds/115mph
Battery capacity/usable/official range 113.4/108.6kWh/563 miles 94/94kWh/433 miles 84/84kWh/354 miles
Test efficiency/range 3.9 mi/kWh/424 miles 3.3 mi/kWh/310 miles 3.8 mi/kWh/319 miles
Max DC charging 400kW (10-80% in 21 mins) 330kW (10-80% in 22 mins) 350kW (10-80% in 18 mins)
       
     
Length/wheelbase 4,760/2,897mm 4,894/2,962mm  4,935/2,950mm
Width/height 1,865/1,480mm 1,892/1,505mm 1,880/1,495mm
Front door opening width/height/sill height 680/925mm/420mm 695/950/435mm  725/870/415mm
Rear door opening width/height 810/925mm 860/810mm  860-945mm
Rear kneeroom 510-760mm 580-825mm  675-900mm
Rear headroom/elbow room 880/1,450mm 890/1,445mm  910/1,530mm
Boot opening width/height 1,000/490mm 1,015/475mm  1,090/450mm
Boot space (front/seats up) 31/420 litres 101/470 litres  14.5/401 litres
Boot length/width/lip height 1,020/1,060/670mm 1,020/950/750mm  1,090/1,040/740mm
Kerbweight/payload/towing weight 2,205/505/1,800kg 2,460/505/1,800kg  2,030/490/1,500kg
Turning circle 12.2 metres 12.1 metres (11.2m w/rear-steer) 11.8 metres
       
     
Residual value (after 3yrs/36,000 miles) N/A £32,627/47.20% N/A
Depreciation N/A £36,498 N/A
Insurance group/quote/VED 40/£866/£640 TBC/N/A/£640  41/£787/£200
Three-year service cost £650 £1,200 £398
Annual tax liability std/higher rate £463/£925 £547/£1,095  £374/£747
Fuel cost (10k miles) £674 £797 £692
Basic warranty (miles)/recovery 3yrs (unlimited)/3yrs 3yrs (unlimited)/3yrs 5yrs (unlimited)/1yr
Driver Power manufacturer position 5th 1st  13th
NCAP Adult/child/ped./assist/stars Not yet tested Not yet tested 97/87/66/90/5 (2022)
       
     
Metallic paint/wheel size £875/19 inches £750-£1,000/20 inches £795-£1,295/20 inches
Parking sensors/camera Front & rear/rear 360/360  Front & rear/rear
Spare wheel/Isofix points  Repair kit/two Repair kit/two  Repair kit/two
Keyless entry & go/powered tailgate  Yes/yes Yes/yes   Yes/yes
Seat upholstery/leather  Fabric/£275  Artificial leather/£2,000  Artificial suede & leather/no
Heated seats/steering wheel  Front/yes Front & rear/yes  Front & rear/yes
Screen size/digital dashboard  17.9 inches/N/A 39.1 inches/N/A  12.3 inches/12.3 inches
Climate control/panoramic sunroof  Three-zone/£1,275 Two-zone/yes  Two-zone/no
USBs/wireless charging  Four/yes Four/two  Four/yes
Wireless Apple CarPlay/Android Auto Yes/yes Yes/yes Yes/yes
Blind-spot warning/head-up display Yes/yes Yes/yes Yes/yes
Adaptive cruise/steering assist Yes/yes Yes/yes Yes/yes

What would we choose?

Panoramic glass is the priciest option offered, while a tow hitch is £1,000 and 20-inch wheels cost up to £1,200. The £275 leather upgrade comes in black, white, dark brown or dark green hues. Park assist with remote control is £775.

The £2,500 Refinement package adds air suspension and rear-wheel steering, while brown Nappa leather is a £2,000 upgrade. Metallic white, red or grey are the £1,000 paint options, and a tow bar is £1,000.

There aren’t as many options on the Ioniq 6 because so much is standard already. Digital side mirrors are £1,250, but we find them distracting, while matt paints are £1,295. We like Ultimate Red, which is the no-cost colour.

Original source BMW i3 vs Mercedes C-Class Electric vs Hyundai Ioniq 6: big test for the 3 Series EV

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