AION V vs BYD ATTO 3

The BYD ATTO 3 costs £2,540 more than the AION V. For that premium it adds 40 kW faster peak rapid charging, 83 kW more power and a 2.2s quicker 0-62mph time. On EVcarsguide's combined category scores, the AION V comes out ahead overall.

The AION V is £2,540 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 AION V comes out roughly £2,540 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 264 miles for the AION V and 263 miles for the BYD ATTO 3 - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. A rapid charge to 80% takes around 25 minutes in the AION V and 35 in the BYD ATTO 3, so the AION V loses less time at each stop.

The two are within 21 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 546 mm of total clearance for the AION V and about 525 mm of total clearance for the BYD ATTO 3. The BYD ATTO 3 also turns in a 0.8 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 AION V and 90% for the BYD ATTO 3. 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.