Kia EV6 vs Mercedes-Benz GLC

The Mercedes-Benz GLC costs £15,465 more than the Kia EV6. For that premium it adds 43 miles more WLTP range, 72 kW faster peak rapid charging and 192 kW more power. On EVcarsguide's combined category scores, the Kia EV6 comes out ahead overall.

The Kia EV6 is £15,465 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 Kia EV6 comes out roughly £15,545 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 297 miles for the Mercedes-Benz GLC - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. Both rapid-charge to 80% in a similar time, around 18-22 minutes.

The two are within 23 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 510 mm of total clearance for the Kia EV6 and about 487 mm of total clearance for the Mercedes-Benz GLC. The Kia EV6 also turns in a 0.5 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 Mercedes-Benz GLC. 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.