Ford Mustang Mach-E vs Kia EV6: home charging cost

At the July 2026 Ofgem price cap (26.11p/kWh), the Kia EV6 costs less to charge — it is the cheaper of the two to run at 6.7p per mile vs 7.1p for the Ford Mustang Mach-E — a difference of about £32.11 over 10,000 miles of home charging.

Prices based on the Ofgem price cap of 26.11 p/kWh, effective 1 July 2026.Source: Ofgem

	Ford Mustang Mach-EExtended Range RWD	Kia EV6RWD 77.4 kWh
Full charge cost	£26.11	£21.96
Cost per mile	7.1p	6.7p
20-80% on a 7 kW wallbox	7 hr 33 min	6 hr 21 min
Usable battery	88 kWh	74 kWh
WLTP range	372 miles	328 miles
Efficiency	4.2 mi/kWh	4.4 mi/kWh
Max AC charging	11 kW	11 kW

At a glance

Full charge cost (lower is better)

Ford Mustang Mach-E£26.11

Kia EV6£21.96

Running cost per mile (lower is better)

Ford Mustang Mach-E7.1p

Kia EV66.7p

20-80% time on a 7 kW wallbox (lower is better)

Ford Mustang Mach-E7 hr 33 min

Kia EV66 hr 21 min

The bigger battery costs more to fill but is not necessarily more expensive to run — cost per mile depends on efficiency, not battery size. Costs include ~12% AC charging losses.