BYD ATTO 3 vs MG4 EV

The BYD ATTO 3 costs £8,995 more than the MG MG4 EV. For that premium it adds 37 miles more WLTP range, 66 kW faster peak rapid charging and 52 litres more boot space. On EVcarsguide's combined category scores, the MG MG4 EV comes out ahead overall.

The MG MG4 EV is £8,995 cheaper to buy. The BYD ATTO 3 is cheaper to charge, roughly £160 a year versus £192 for the MG MG4 EV, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the MG MG4 EV comes out roughly £8,835 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 263 miles for the BYD ATTO 3 and 181 miles for the MG MG4 EV - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BYD ATTO 3 goes roughly 82 miles further between charging stops. A rapid charge to 80% takes around 35 minutes in the BYD ATTO 3 and 25 in the MG MG4 EV, so the MG MG4 EV loses less time at each stop. So the BYD ATTO 3 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 39 mm narrower than the BYD ATTO 3. In a standard 2,400 mm bay that leaves about 564 mm of total clearance for the MG MG4 EV and about 525 mm of total clearance for the BYD ATTO 3.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD ATTO 3 and 90% for the MG MG4 EV. That is close enough that capacity loss should not decide between them. Both use LFP-type cells, which are happy charged to 100% every day. Both batteries carry a 8-year manufacturer warranty.