BYD Seal U Used Price: The Song PLUS Champion 520km in 2026

A used BYD Seal U — the export name for the Song PLUS Champion Edition EV — costs $15,000-$17,500 FOB China in 2026 for a 2023 car with around 40,000 km. That is $6,000-$8,000 below a new one, and it is the best value family EV in BYD’s used range.

The name causes real confusion. In China it is the Song PLUS Champion Edition. In Europe and Latin America BYD badges it Seal U. Same car, same 71.8 kWh Blade pack, same 204 hp front motor. If you search only one name, you will miss half the stock.

What does the 71.8 kWh pack deliver in real range?

Four hundred to four hundred and fifty kilometres in mixed driving on a mild day. Three hundred and thirty to three hundred and seventy in a cold winter at motorway speeds.

The 520 km CLTC rating is honest for a Chinese rating, which is not a compliment. It assumes a warm battery, gentle acceleration and no air conditioning. Real owners report 78-85% of the rated figure in normal use.

DC charging peaks at 88 kW, taking 30% to 80% in about 35 minutes. This is not a fast-charging car. It is a car you charge overnight and drive all week.

How does it compare with a used Atto 3?

The 2022 Atto 3 510km Flagship is $15,500-$17,000 and has the same 204 hp motor. The Seal U adds 0.28 m of length, a much larger boot (474 litres against 440), and a better rear seat.

Both use Blade LFP. Both charge at similar speeds. The decision comes down to whether you need the boot space, and for a family of four with luggage, you do.

The 2021 Song PLUS EV Luxury Edition with 505 km is the older, cheaper version at $12,000-$13,500. It has a 71.7 kWh pack as well, which makes it the bargain of the range if you can live with the earlier interior.

What changed on the Champion Edition?

Mostly equipment and a slightly revised battery management calibration. The Champion Edition added a larger rotating screen on some trims, a heat pump as standard rather than optional, and a quieter cabin.

The heat pump matters. On a car without one, winter range drops 30-35% instead of 22-26%. If you are buying in a cold climate, confirm the car has it, because it is the single biggest cold-weather factor on this model.

What should you check on a used Seal U or Song PLUS?

• Battery state of health and cell spread. Above 90% and under 50 mV on a car with 40,000 km.
• Heat pump operation. Run the climate control from cold and watch how quickly it produces heat.
• Front tyre wear. The car is 1,950 kg on the front axle. Uneven wear suggests alignment issues.
• Infotainment screen rotation. The motor that turns the display is a known weak point.

Is the sedan alternative cheaper?

Often, yes. The 2024 BYD Han EV 506km Honor Edition at about $20,000 is a 5 m executive sedan, and the 2025 BYD Qin L EV 545KM Beyond Edition at $16,500-$18,000 is newer, rear-drive, and rated at 545 km.

If you do not need SUV height or the boot, the Qin L is the better car for similar money. It is a year newer, drives better, and charges faster at 103 kW.

Buy the Seal U if you need the SUV body and the 474-litre boot. Buy the Qin L if you want the most modern BYD your money can reach.

Key Takeaways

• The BYD Seal U is the export name for the Song PLUS Champion Edition EV.
• A used 2023 car costs $15,000-$17,500 FOB in 2026.
• Real range from 71.8 kWh is 400-450 km, and 330-370 km in winter.
• Confirm the heat pump is fitted, and check battery health above 90%.