BYD Dolphin Surf vs firefly

EVcarsguide estimates a real-world motorway range of about 87 miles for the BYD Dolphin Surf and 171 miles for the firefly firefly - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The firefly firefly goes roughly 84 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 25-30 minutes.

The BYD Dolphin Surf is the easier car for tight UK car parks: it is 61 mm narrower than the firefly firefly. In a standard 2,400 mm bay that leaves about 680 mm of total clearance for the BYD Dolphin Surf and about 619 mm of total clearance for the firefly firefly. The firefly firefly 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 90% battery health for the BYD Dolphin Surf and 84% for the firefly firefly. That gives the BYD Dolphin Surf a modest edge in retained real-world range. The BYD Dolphin Surf's LFP-type pack tolerates daily 100% charging, while the firefly firefly's NMC-type pack lasts longest kept to about 80% for everyday use.