Engineering:BYD Seal 07

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Short description: Full-size sedan
BYD Seal 07
Overview
ManufacturerBYD Auto
ProductionJuly 2023 – present
Body and chassis
ClassFull-size car (E-segment)
Body style4-door sedan

The BYD Seal 07 (Chinese: 比亚迪海豹07; pinyin: Bǐyǎdí Hǎibào 07), previously the BYD Seal DM-i until 2024, is a full-size sedan manufactured by BYD Auto since 2023. It was only available as a plug-in hybrid known as the Seal 07 DM-i until the 2026 model year, when a battery-electric version known as the Seal 07 EV was introduced.

First generation (2023)

First generation
Overview
Also called
  • BYD Seal DM-i (China, 2023–2024)
  • BYD Seal 7 DM-i (export)[1]
ProductionJuly 2023[2] – present
AssemblyChina: Zhengzhou, Henan;[2] Shenzhen, Guangdong; Hefei, Anhui; Jinan, Shandong[3]
DesignerUnder the lead of Wolfgang Egger
Body and chassis
Layout
  • Front-engine, front-motor, front-wheel drive (DM-i)
  • Rear-motor, rear-wheel-drive (EV)
RelatedBYD Han[4]
Powertrain
Engine
Electric motorAC Permanent magnet synchronus
TransmissionE-CVT
Hybrid drivetrainPlug-in hybrid (DM-i)
Battery
  • 17.6 kWh BYD Blade LFP (DM-i)
  • 30.7 kWh BYD Blade LFP (DM-i)
  • 69.0 kWh BYD Blade LFP (EV)
Dimensions
Wheelbase2,900 mm (114.2 in)
Length
  • 4,980 mm (196.1 in)
  • 4,995 mm (196.7 in) (facelift)
Width
  • 1,890 mm (74.4 in)
  • 1,900 mm (74.8 in) (facelift)
Height1,495 mm (58.9 in)
|uk|Kerb|Curb}} weight1,795–1,900 kg (3,957–4,189 lb)

History

The Seal DM-i was first introduced as a prototype at 2023 Auto Shanghai named the BYD Destroyer 07 and was planned to be the third product of the Warship Series model line. However, plans were changed in July 2023 just months before launch and it was launched as the Seal DM-i instead, to integrate it with the Seal series of sedans.[6][7][4]

Overview

Sold through Ocean Network dealerships, the Seal DM-i is positioned in the BYD's range as an alternative to the similar BYD Han, which belongs to Dynasty Network dealerships. It went on sale in September 2023 in China.[8]

The stylistic design by Wolfgang Egger was maintained in the next generation of aesthetics already known from the electric Seal, distinguished, among others, muscular wheel arches, slim roofline and boomerang-shaped headlights. The rear lamps took the shape of water drops, dominating the band in the composition with a chrome strip.[6] The cabin has a design identical to other models in BYD's Ocean Series product line. The central element of the dashboard is the 15.6-inch touchscreen of the multimedia system.[9][10]

  • BYD Destroyer 07 (near-production model)
    BYD Destroyer 07 (near-production model)
  • Rear view
    Rear view

2025 facelift

On 21 August 2025, BYD officially introduced the facelifted Seal 07 DM-i in China, marketed as the BYD Seal 07 DM-i. The facelift brings a slight increase of dimensions, and brings the Seal 07 DM-i more in line with recent BYD Ocean series models, such as redesigned headlights and a grille repositioned to the lower air intake. The integration of a roof-mounted lidar sensor allows for BYD's “God’s Eye-B” (DiPilot 300) intelligent driving assistance system. It carries over the 5th-generation DM-i powertrain from the pre-facelift model.[11]

Seal 07 EV (2026)

For the 2026 model year, BYD officially introduced the Seal 07 EV in China on 1 March 2026.[12] It went on sale during BYD's Technology Day on March 5, 2026.[13] It shares its body and design with the Seal 07 DM-i, which continues to be sold.

  • BYD Seal 07 EV
    BYD Seal 07 EV
  • Rear view
    Rear view
  • Interior
    Interior

Powertrain

Unlike the BYD Han, the BYD Seal 07 DM-i only uses a front wheel drive instead of both available as a DM-p or DM variant and all-wheel drive which allows the fullsize car turning radius fits into narrow space.

The electric version of a BYD Seal 07 EV powertrain details isn't released, which uses an e-Platform 3.0 Evo platform that is expected to available in rear-motor rear-wheel drive or dual-motor all-wheel drive.

The Seal DM-i was launched with a choice of two different petrol engine options. The standard engine was a 1.5-liter naturally aspirated inline-4 with port injection, a compression ratio of 15.5:1 and set in Atkinson cycle, and outputs 81 kW (109 hp) (78 kW (105 hp) net power) at 6,000rpm and 135 N⋅m (100 lb⋅ft) of torque at 4,500rpm. The upgraded engine is a 1.5-liter turbocharged inline-4 with direct injection, a compression ratio of 12.5:1, and set in Miller cycle, which outputs 102 kW (137 hp) (96 kW (129 hp) net power) at 5,200rpm and 231 N⋅m (170 lb⋅ft) of torque from 1,350–4,000rpm.[14]

In August 2024, both engine options were updated as part of the 2025 facelift. The standard engine now outputs 74 kW (99 hp) (70 kW (94 hp) net power) at 6,000rpm and 126 N⋅m (93 lb⋅ft) of torque at 4,500rpm, and has a compression ratio of 16:1 a peak thermal efficiency of 46.1%.[15] The upgraded engine now outputs 115 kW (154 hp) (110 kW (148 hp) net power) at 5,500rpm and 225 N⋅m (166 lb⋅ft) of torque from 2,500–4,500rpm, and has a compression ratio of 14:1 and a peak thermal efficiency of 45.03%.[16]

Type Engine Trans. Battery Layout Electric motor 0–100 km/h (62 mph) Electric range Calendar years
Displ. Power Torque Type Weight Peak charge Type Power Torque NEDC WLTC CLTC
1.5 L 121 km DM-i BYD472QA 1,498 cc (1.5 L) I4 78 kW (105 hp) 135 N⋅m (13.8 kg⋅m; 99.6 lb⋅ft) E-CVT 17.6 kWh LFP 178 kg
(392 lb) 		38 kW FWD PMSM 145 kW (194 hp) 325 N⋅m (33.1 kg⋅m; 240 lb⋅ft) 8.2 sec 121 km (75 mi) 101 km (63 mi) — 2023–24
1.5 T 121 km DM-i BYD476ZQC 1,497 cc (1.5 L) I4 turbo 96 kW (129 hp) 231 N⋅m (23.6 kg⋅m; 170 lb⋅ft) 160 kW (215 hp) 7.9 sec 121 km (75 mi) 101 km (63 mi)
1.5 T 200 km DM-i 30.7 kWh LFP 270 kg
(595 lb) 		69 kW 200 km (124 mi) 160 km (99 mi)
07 1.5 L 70 km DM-i BYD472QC 1,498 cc (1.5 L) I4 70 kW (94 hp) 126 N⋅m (93 lb⋅ft) 10.08 kWh LFP 106 kg
(234 lb) 		— 260 N⋅m (192 lb⋅ft) 8.5 sec 67 km (42 mi) 55 km (34 mi) 70 km (43 mi) 2024–25
07 1.5 L 135 km DM-i 17.6 kWh LFP 178 kg
(392 lb) 		40 kW 8.0 sec — 110 km (68 mi) 135 km (84 mi) 2024–present
07 1.5 T 135 km DM-i BYD472ZQB 1,498 cc (1.5 L) I4 turbo 110 kW (148 hp) 225 N⋅m (166 lb⋅ft) 200 kW (268 hp) 315 N⋅m (232 lb⋅ft) 6.9 sec
07 1.5 T 230 km DM-i 29.46 kWh LFP 266 kg
(586 lb) 		69 kW 180 km (112 mi) 230 km (143 mi) 2025–present
07 EV — 1-speed 69.07 kWh LFP 490.6 kg
(1,082 lb) 		RWD 240 kW (322 hp) 305 N⋅m (225 lb⋅ft) 6.5 sec — 705 km (438 mi) 2026–present
References:[17]

Second generation (2026)

Second generation
Overview
Production2026 (to commence)
DesignerUnder the lead of Wolfgang Egger
Powertrain
Engine
Electric motorPermanent magnet synchronous
Hybrid drivetrainPlug-in hybrid (DM-i)
Battery38.029 kWh LFP FinDreams
Electric range245 km (152 mi) (PHEV, WLTP)
Dimensions
Wheelbase2,960 mm (116.5 in)
Length5,080 mm (200.0 in)
Width1,960 mm (77.2 in)
Height1,495 mm (58.9 in)
|uk|Kerb|Curb}} weight1,960–2,060 kg (4,321–4,542 lb)

The second generation Seal 07 was revealed through China's MIIT filings on 7 Aug 2026. Similar to its predecessor, both DM-i (plug-in hybrid) and EV (battery electric) variants share the same body and dimensions, only differing in badging[18][19][20]

The exterior design of the Seal 07 takes cues from the BYD Ocean series' latest Ocean Aesthetics 2.0 design language seen in the larger Seal 08 and Sealion 08, including split headlights in the front with a distinctive dual light signature, and wave-shaped taillights. Some variants are equipped with a roof-mounted LiDAR sensor.[21]

Powertrain

The second generation Seal 07 is available with either battery electric or plug-in hybrid powertrains.

There are two single motor battery-electric variants producing 245 kW (329 hp) and 300 kW (400 hp) of power respectively. Both use lithium iron phosphate (LFP) batteries from FinDreams.

The plug-in hybrid (DM-i) variant uses a 1.5-liter turbocharged engine producing a peak power of 115 kW (154 hp) (110 kW (148 hp) net power), an electric motor producing 160 kW (210 hp) and a 38.029 kWh lithium iron phosphate (LFP) battery. It has an electric-only CLTC range of 245 km (152 mi).[18][20][22]

Specifications[21]
Model Battery Engine Motor Electric range Top speed Kerb weight
Type Weight WLTP
DM-i 38.029 kWh LFP 280 kg
(617 lb) 		1.5L turbo I4; 147 hp (110 kW; 149 PS) 160 kW (70 kW rated) TZ210XYC PMSM 245 km
(152 mi) 		190 km/h
(118 mph) 		1,960 kg
(4,321 lb)
EV LFP — 300 kW (150 kW rated) TZ205QYD PMSM 240 km/h
(149 mph) 		2,060 kg
(4,542 lb)

Sales

Year China
DM-i
2023 32,380[23]
2024 65,000[24]
2025 26,451[25]

See also

  • List of BYD Auto vehicles

References

  1. ↑ Kang, Lei (2025-06-06). "BYD brings Seal 07 DM-i hybrid sedan to Gulf countries" (in en-US). https://cnevpost.com/2025/06/06/byd-seal-07-dm-i-gulf-countries/. 
  2. ↑ 2.0 2.1 "比亚迪海豹DM-i首批量产车下线，重塑新一代主流中型轿车-汽车-南海网". https://www.hinews.cn/auto/system/2023/07/20/033012213.shtml. 
  3. ↑ "All about BYD". https://www.marklines.com/en/oem/byd. 
  4. ↑ 4.0 4.1 "驱逐舰07摇身变海豹DM-i，一切都是为了销量". https://www.sohu.com/a/704060191_100097944. 
  5. ↑ "比亚迪2022年新车计划曝光：海狮海豹海鸥 驱逐舰巡洋舰登陆舰+汉DM-i" (in en). https://www.sohu.com/a/509114137_383324. 
  6. ↑ 6.0 6.1 "BYD Destroyer 07 PHEV debuts in Shanghai with a 200 km battery range". CarNewsChina. 18 April 2023. https://carnewschina.com/2023/04/18/byd-destroyer-07-phev-debuts-in-shanghai-with-a-200-km-range/. Retrieved 18 April 2023. 
  7. ↑ "BYD Destroyer 07 sedan will launch as BYD Seal DM-i, price may start at 23,500 USD". CarNewsChina. 10 July 2023. https://carnewschina.com/2023/07/10/byd-destroyer-07-sedan-will-launch-as-byd-seal-dm-i-price-may-start-at-23500-usd/. Retrieved 21 October 2023. 
  8. ↑ "BYD Seal DM-i hits market, starting at 166,800 yuan". Gasgoo. 7 September 2023. https://autonews.gasgoo.com/m/70027891.html. 
  9. ↑ "BYD Seal DM-i interior unveiled in China with 15.6-inch screen and lots of space" (in en). CarNewsChina. 17 July 2023. https://carnewschina.com/2023/07/17/byd-seal-dm-i-interior-unveiled-in-china-with-15-6-inch-screen-and-lots-of-space/. Retrieved 2023-07-18. 
  10. ↑ "BYD Ocean's Plug-In Hybrid Destroyer 07 entered the network with battery life of up to 200km" (in en). https://www.techgoing.com/byd-oceans-plug-in-hybrid-destroyer-07-entered-the-network-with-battery-life-of-up-to-200km/. Retrieved 2023-06-23. 
  11. ↑ "新款比亚迪海豹07 DM-i前脸微调/配激光雷达 现款车型售13.98万起" (in zh). https://www.autohome.com.cn/news/202508/1308349.html#pvareaid=103453. 
  12. ↑ "全新紫色外观 轴距2900mm/定位中型轿车 比亚迪海豹07 EV官图发布" (in zh). https://www.autohome.com.cn/news/202603/1312621.html#pvareaid=102624. 
  13. ↑ Leung, Adrian (2025-12-06). "New BYD Seal 07 EV revealed with 240 kW motor, LiDAR sensor" (in en-US). https://carnewschina.com/2025/12/06/new-byd-seal-07-ev-revealed-with-240-kw-motor-lidar-sensor/. 
  14. ↑ "【海豹 2023款 DM-i 1.5L 121km 尊贵型参数配置表】_价格单_海豹" (in zh-CN). https://www.autohome.com.cn/config/spec/64469.html#pvareaid=3454541. 
  15. ↑ Andrews, Mark (2024-05-28). "BYD's 5th generation DM technology for PHEVs debuts in China" (in en-US). https://carnewschina.com/2024/05/28/byds-5th-generation-dm-technology-for-phevs-debuts-in-china/. 
  16. ↑ Andrews, Mark (2024-10-25). "BYD Tang launches with DM 5.0 PHEV technology giving 3-row SUV a 1,150km range" (in en-US). https://carnewschina.com/2024/10/25/byd-tang-launches-with-dm-5-0-phev-technology-giving-3-row-suv-a-1150km-range/. 
  17. ↑ "汽车之家|汉|报价大全|参数配置". https://car.autohome.com.cn/config/series/5499-18369.html. 
  18. ↑ 18.0 18.1 Kang, Lei (2026-08-07). "BYD files updated Seal 07 sedan with larger dimensions, more power" (in en-US). https://cnevpost.com/2026/08/07/byd-files-updated-seal-07-sedan/. 
  19. ↑ 市场资讯 (2026-08-07). "比亚迪海豹07新车申报：提供纯电/插混动力，峰值功率300 kW". https://finance.sina.com.cn/stock/t/2026-08-07/doc-inimnkum3290037.shtml. 
  20. ↑ 20.0 20.1 "比亚迪海豹07完成工信部申报：轴距2960mm，提供纯电、插混双动力" (in zh). 2026-08-07. https://tech.ifeng.com/c/8vOZWLqUjBZ. 
  21. ↑ 21.0 21.1 Chang, Qinglin (2026-08-07). "Error: no |title= specified when using {{Cite web}}" (in zh-CN). https://www.autohome.com.cn/news/202608/1316286.html#pvareaid=102624. 
  22. ↑ "【图】外观设计变化大！比亚迪新款海豹07申报图曝光" (in zh-CN). https://www.autohome.com.cn/news/202608/1316286.html. 
  23. ↑ "【易车销量榜】全国2023年比亚迪插电混动零售量销量榜-易车榜-易车". https://car.yiche.com/newcar/salesrank/?flag=2023&brandId=15&energy=3. 
  24. ↑ "【易车销量榜】全国2024年比亚迪插电混动零售量销量榜-易车榜-易车". https://car.yiche.com/newcar/salesrank/?flag=2024&brandId=15&energy=3. 
  25. ↑ "Error: no |title= specified when using {{Cite web}}". https://car.yiche.com/newcar/salesrank/?flag=2025&brandId=15&energy=3. 



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