BMW i4 vs Peugeot e-308 SW

The BMW i4 costs £21,140 more than the Peugeot e-308 SW. For that premium it adds 91 miles more WLTP range, 135 kW more power and a 4.2s quicker 0-62mph time. On EVcarsguide's combined category scores, the Peugeot e-308 SW comes out ahead overall.

The Peugeot e-308 SW is £21,140 cheaper to buy. The Peugeot e-308 SW is cheaper to charge, roughly £144 a year versus £176 for the BMW i4, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Peugeot e-308 SW comes out roughly £21,300 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 261 miles for the BMW i4 and 229 miles for the Peugeot e-308 SW - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BMW i4 goes roughly 32 miles further between charging stops.

The two are within 0 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 548 mm of total clearance for the BMW i4 and about 548 mm of total clearance for the Peugeot e-308 SW. The Peugeot e-308 SW also turns in a 1.4 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 BMW i4 and 84% for the Peugeot e-308 SW. 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.