MG4 EV vs MG S6 EV

The MG S6 EV costs £8,000 more than the MG MG4 EV. For that premium it adds 48 miles more WLTP range, 286 litres more boot space and 40 kW more power. The MG MG4 EV is not just cheaper - it also offers a 1.7s quicker 0-62mph time. On EVcarsguide's combined category scores, the MG MG4 EV comes out ahead overall.

The MG MG4 EV is £8,000 cheaper to buy. Running costs are almost identical - about £184 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 £7,960 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 232 miles for the MG S6 EV - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The MG S6 EV goes roughly 50 miles further between charging stops. A rapid charge to 80% takes around 25 minutes in the MG MG4 EV and 38 in the MG S6 EV, so the MG MG4 EV loses less time at each stop. So the MG S6 EV stops less often while the MG MG4 EV stops for less time - pick on which you would rather do.

The MG MG4 EV is the easier car for tight UK car parks: it is 76 mm narrower than the MG S6 EV. In a standard 2,400 mm bay that leaves about 564 mm of total clearance for the MG MG4 EV and about 488 mm of total clearance for the MG S6 EV. The MG MG4 EV also turns in a 0.6 m tighter circle, which helps with U-turns and multi-storey ramps.

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 S6 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 S6 EV's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.