Kia EV6 vs MG S5 EV

The Kia EV6 costs £14,140 more than the MG S5 EV. For that premium it adds 63 miles more WLTP range and 119 kW faster peak rapid charging. The MG S5 EV is not just cheaper - it also offers a 1.4s quicker 0-62mph time. On EVcarsguide's combined category scores, the Kia EV6 comes out ahead overall.

The MG S5 EV is £14,140 cheaper to buy. Running costs are almost identical - about £160 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the MG S5 EV comes out roughly £14,100 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.

EVcarsguide estimates a real-world motorway range of about 301 miles for the Kia EV6 and 208 miles for the MG S5 EV - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Kia EV6 goes roughly 93 miles further between charging stops. A rapid charge to 80% takes around 18 minutes in the Kia EV6 and 28 in the MG S5 EV, so the Kia EV6 loses less time at each stop. That makes the Kia EV6 the stronger long-distance car.

The MG S5 EV is the easier car for tight UK car parks: it is 41 mm narrower than the Kia EV6. In a standard 2,400 mm bay that leaves about 551 mm of total clearance for the MG S5 EV and about 510 mm of total clearance for the Kia EV6. The MG S5 EV also turns in a 1.1 m tighter circle, which helps with U-turns and multi-storey ramps.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 89% battery health for the Kia EV6 and 84% for the MG S5 EV. That gives the Kia EV6 a modest edge in retained real-world range. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation.