BYD ATTO 3 vs Deepal S05

The Deepal S05 costs £1,005 more than the BYD ATTO 3. For that premium it adds 52 litres more boot space and 90 kW more power. The BYD ATTO 3 is not just cheaper - it also offers 39 miles more WLTP range. On EVcarsguide's combined category scores, the Deepal S05 comes out ahead overall.

The BYD ATTO 3 is £1,005 cheaper to buy. Running costs are almost identical - about £160 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BYD ATTO 3 comes out roughly £1,045 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 231 miles for the Deepal S05 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BYD ATTO 3 goes roughly 32 miles further between charging stops. A rapid charge to 80% takes around 35 minutes in the BYD ATTO 3 and 15 in the Deepal S05, so the Deepal S05 loses less time at each stop. So the BYD ATTO 3 stops less often while the Deepal S05 stops for less time - pick on which you would rather do.

The two are within 25 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 525 mm of total clearance for the BYD ATTO 3 and about 500 mm of total clearance for the Deepal S05.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD ATTO 3 and 90% for the Deepal S05. 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.