MG4 EV vs MG S5 EV

The MG S5 EV costs £1,500 more than the MG MG4 EV. For that premium it adds 65 litres more boot space, 30 kW more power and a 1.2s quicker 0-62mph time. On EVcarsguide's combined category scores, the MG MG4 EV comes out ahead overall.

The MG MG4 EV is £1,500 cheaper to buy. Running costs are almost identical - about £168 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the MG MG4 EV comes out roughly £1,380 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 181 miles for the MG MG4 EV 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 MG S5 EV goes roughly 26 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 25-28 minutes.

The two are within 13 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 564 mm of total clearance for the MG MG4 EV and about 551 mm of total clearance for the MG S5 EV.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the MG MG4 EV and 84% for the MG S5 EV. That gives the MG MG4 EV a modest edge in retained real-world range. The MG MG4 EV's LFP-type pack tolerates daily 100% charging, while the MG S5 EV's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.