BYD Sealion 7 海狮07 EV
* Estimated from owner-reported seasonal factors - not a UK road test. Figures are WLTP for the UK market unless labelled otherwise. Source: BYD UK (Jul 2026). Checked 13 Sept 2026.
Key information
Every term explained in plain English where it first appears.
The numbers
Range under every standard it is tested to, the China list price beside the UK one, company-car tax by year, and charge time by charger power. A row we cannot source is left off, never guessed.
| Real range by condition | Combined |
|---|---|
| Mild23°C, no A/C | ~265 mi* |
| Cold-10°C, heating on | ~218 mi* |
| Tax year | BiK rate | Source |
|---|---|---|
| 2026/27 | 4% BiK for 2026/27 (pure zero-emission rate, HMRC) — lowest available band for company car drivers Official figure | carwow.co.uk |
| Charger power | Time | Source |
|---|---|---|
| DC charge time (10 to 80%) | 150 kW; 10–80% in ~32 minutes Official figure | bydukmedia.comev-database.org |
Who actually makes it — and will they still be here in 2030?
The BYD Sealion 7 is manufactured by BYD Company Ltd, the Shenzhen-based automotive and energy giant that also supplies batteries to Tesla, Toyota, and Mercedes. There is no shell company, no rebadge, and no distributor risk: BYD is both the brand and the manufacturer, publicly listed on the Hong Kong and Shenzhen exchanges with a market capitalisation north of £70 billion. The company sold over 4 million vehicles in 2024 (its best year ever), makes its own Blade Battery cells, semiconductors, and electric motors, and has active UK dealer operations with 5+ models on sale. Survival risk is about as low as it gets in the Chinese EV space.
China-side evidence
What Chinese owners actually say about the 海狮07
In China the Sealion 7 is sold as the 海狮07 EV (Hǎishī 07 EV, Sea Lion 07). It launched in May 2024 and sits on BYD's e-Platform 3.0 Evo — the most advanced version of BYD's EV architecture, with 800V architecture on mid and upper Chinese trims. The 懂车帝 owner score of 3.89/5.0 sits below the class average of 3.94, and 车质网 logs a complaint ratio of 865.5 per 10,000 units — not alarming but not clean. The patterns that emerge from Chinese owner data are worth knowing before you sign an order form in the UK.
Owner reports, complaint records and recall notices from the Chinese market, each with the source and the date we read it. Sample sizes are small; read them as signals, not survey results.
China vs UK — the platform gap is bigger than BYD admits
This is where UK buyers need to pay close attention. The Sealion 7 sold in Britain is not the same car Chinese owners are reviewing. UK cars use e-Platform 3.0 (not Evo) on the Comfort and Design trims, cutting peak DC charging from 240 kW to 150 kW — a significant 37% reduction. China's DiSus-C intelligent adaptive damping is replaced by simpler FSD (Frequency Selective Dampers). There is no LiDAR, no "God's Eye" ADAS, and no NVIDIA Orin-X compute in any UK model. Only the £59,025 Excellence trim approaches China spec in charging capability. Meanwhile UK buyers pay roughly 2.3× the Chinese price.
UK essentials: specs, pricing, tax and running costs
Three trims are available in the UK: Comfort RWD (£47,025), Design AWD (£52,025), and Excellence AWD (£59,025). All carry Euro NCAP 5-star safety (2025), BYD's best-in-class 8-year/155,350-mile battery warranty, and standard V2L at 3.3 kW. Every trim exceeds the £40,000 threshold, so all attract the Expensive Car Supplement (VED) from year two to year six. BiK for company car drivers is 4% for 2026/27 — the lowest band. What Car? recommends the Comfort as the pick of the range: better value, adequate range, and the same warranty.
Honest verdict: where the Sealion 7 wins and where it doesn't
The Sealion 7's killer feature is its warranty: 8 years/155,350 miles on the battery is genuinely best in class, beating Kia's 7-year/100k and Hyundai's 8-year/125k. The 5-star Euro NCAP (2025), strong motor performance, and the reassurance of buying from the world's second-largest EV maker are real positives. The downsides are equally real: slow charging on the two lower trims (150 kW when rivals offer 240 kW), ride quality that UK and Chinese reviews both criticise, a boot notably smaller than the Tesla Model Y it's priced against, and tyre wear patterns worth monitoring. The Excellence trim resolves the charging problem but at £59,025 competes with a very different field.
Frequently asked questions
- How much does the BYD Sealion 7 cost in the UK?
- Three trims are available: Comfort RWD at £47,025, Design AWD at £52,025, and Excellence AWD at £59,025 OTR. All three exceed the £40,000 threshold, so all attract the Expensive Car Supplement on VED from year two to year six.
- Is the UK BYD Sealion 7 the same as the Chinese version?
- No. UK Comfort and Design trims use e-Platform 3.0, not the Evo version sold in China, cutting peak DC charging from 240 kW to 150 kW. UK cars also lack the LiDAR, NVIDIA Orin-X compute and DiSus-C adaptive damping fitted to higher Chinese trims.
- How fast does the BYD Sealion 7 charge?
- The Comfort and Design trims peak at 150 kW DC, giving a 10–80% charge in around 32 minutes. Only the £59,025 Excellence trim gets 800V charging at 230 kW, closer to the Chinese-market specification.
- What is BYD's real-world motorway range like on the Sealion 7?
- Autocar's 70 mph touring test recorded 223 miles from the Comfort trim, What Car? estimated around 249 miles, and Carwow estimated around 200 miles in mixed conditions. That works out to roughly 67–83% of the official WLTP figures, worth flagging for long-distance drivers.
Battery and warranty, in plain English
What is covered, and for how long.
In pictures
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How we verify: AI-assisted research gathers Chinese owner reviews & pricing; a person checks high-stakes facts (UK price, range, warranty, safety); Kai Zhang signs off before publish. Anything still unchecked is labelled.
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