MG IM6 vs Toyota bZ4X

The MG IM6 costs £8,000 more than the Toyota bZ4X. For that premium it adds 112 miles more WLTP range, 246 kW faster peak rapid charging and 213 litres more boot space. On EVcarsguide's combined category scores, the Toyota bZ4X comes out ahead overall.

The Toyota bZ4X is £8,000 cheaper to buy. The Toyota bZ4X is cheaper to charge, roughly £144 a year versus £200 for the MG IM6, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Toyota bZ4X comes out roughly £8,280 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 275 miles for the MG IM6 and 230 miles for the Toyota bZ4X - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The MG IM6 goes roughly 45 miles further between charging stops. A rapid charge to 80% takes around 17 minutes in the MG IM6 and 30 in the Toyota bZ4X, so the MG IM6 loses less time at each stop. That makes the MG IM6 the stronger long-distance car.

The Toyota bZ4X is the easier car for tight UK car parks: it is 128 mm narrower than the MG IM6. In a standard 2,400 mm bay that leaves about 540 mm of total clearance for the Toyota bZ4X and about 412 mm of total clearance for the MG IM6. The MG IM6 also turns in a 1.0 m tighter circle, which helps with U-turns and multi-storey ramps.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the MG IM6 and 84% for the Toyota bZ4X. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation. Both batteries carry a 8-year manufacturer warranty.