Quick Highlights:BYD teased the Seal 08 sedan and Sealion 08 SUV as flagship Ocean series modelsBoth EVs are expected to debut in Q1 2026 with next-generation BYD technologiesThe models adopt the new Ocean Aesthetic 2.0 design languageBYD’s Ocean series has surpassed 6 million cumulative salesBYD Previews New Flagship Models Under the Ocean SeriesChinese new energy vehicle giant BYD has officially teased two upcoming flagship models under its popular Ocean series: the Seal 08 sedan and the Sealion 08 SUV . The preview took place on December 15, 2025 , during a company event celebrating major sales milestones. According to BYD, both models are positioned at the top of the Ocean lineup and are expected to make their official debut in the first quarter of 2026 .The announcement signals BYD’s intent to further strengthen its presence in the premium new energy vehicle segment, building on the strong momentum of the Ocean series, which has become one of the company’s most successful product families.Ocean Aesthetic 2.0 Design Inspired by Concept CarBYD Ocean S ConceptBoth the Seal 08 and Sealion 08 draw inspiration from the Ocean S concept car , which debuted earlier this year at the 2025 Shanghai Auto Show . These models showcase BYD’s latest Ocean Aesthetic 2.0 design language , an evolution that emphasizes smoother surfaces, futuristic lighting signatures, and a more premium overall appearance.The updated design philosophy is expected to differentiate the new flagships from existing Ocean series models, positioning them as larger, more refined, and technologically advanced offerings. While BYD has not revealed full exterior or interior details, early teasers suggest a focus on aerodynamic efficiency, spacious cabins, and high-end materials.Seal 08 Sedan: Evolution of the Seal LineupBYD Seal 08 (Source: Chinese MIIT)The Seal 08 sedan is expected to represent a significant step up from the current Seal models. Interestingly, BYD had previously applied for a sales license for a vehicle named Seal 08 in China earlier this year. However, that model ultimately entered the market in June 2025 under the name Seal 06 , indicating that the upcoming Seal 08 will be a more advanced and possibly larger vehicle.Patent filings for the earlier Seal 08 iteration revealed body dimensions of 4720 mm in length , 1880 mm in width , and 1495 mm in height , with a wheelbase of 2820 mm . These proportions place the car firmly in the mid-size sedan category, offering a balance of interior space and road presence.BYD Seal 08 (Source: Chinese MIIT)In terms of powertrain, the Seal 06 currently offers two electric configurations. The base version uses a BYD-developed motor producing 148 hp , paired with a 46.1 kWh Blade battery , delivering a 470 km CLTC range . A higher-performance version produces 215 hp , supported by a 56.6 kWh Blade battery , extending the range to 545 km .The upcoming Seal 08 is widely expected to surpass these figures, potentially featuring more powerful motors, higher-capacity Blade batteries, and improved efficiency through BYD’s latest EV technologies.Sealion 08 SUV: Large, Spacious, and Family-OrientedBYD Sealion 08 (Source: 2025 Ocean Day Event)The Sealion 08 SUV is shaping up to be a large, premium electric SUV aimed at families and long-distance travelers. Early expectations suggest a vehicle length of around 5040 mm and a wheelbase of 2950 mm , making it one of the largest SUVs in the Ocean series.The generous dimensions point toward a 2+3+3 seating configuration , offering a full seven-seat layout . This positions the Sealion 08 as a strong contender in the growing large electric SUV segment, where interior space, comfort, and versatility are key purchasing factors.While detailed specifications remain undisclosed, the Sealion 08 is expected to feature BYD’s latest driver assistance systems, advanced infotainment, and high-energy-density Blade battery options tailored for longer driving ranges.“5678” Product Strategy and Future ModelsDuring the event, BYD also confirmed plans to introduce Seal 09 and Sealion 09 models in the future. Together with the Seal 05, 06, 07, and upcoming 08 models, this creates what BYD refers to as a “5678” product sequence across the Seal sedan and Sealion SUV lineups.This structured naming strategy reflects BYD’s systematic expansion of its Ocean series, covering multiple size segments and price points while maintaining consistent branding.Ocean Series Sales Success and Market ImpactSince its establishment in November 2021 , BYD’s Ocean series has achieved remarkable commercial success, with cumulative sales exceeding 6 million vehicles . Models such as the Song Plus , Seagull , Dolphin , and Seal have each surpassed one million units sold , highlighting the lineup’s broad market appeal.BYD has sold 4.18 million NEVs from January to November this year, with the Ocean series contributing 2.03 million units , accounting for 48.56 percent of total sales.Milestones and Industry LeadershipAt the event, Zhang Zhuo , head of sales for BYD’s Ocean series, revealed several major milestones. BYD is preparing to roll out its 15 millionth new energy vehicle , further cementing its leadership in the global EV market. Additionally, the BYD Dolphin has reached its one millionth unit produced , making it the fastest A0-segment model to hit this mark in China.Conclusion: A New Premium Chapter for BYDWith the upcoming Seal 08 sedan and Sealion 08 SUV , BYD is clearly positioning the Ocean series for a more premium future. Backed by strong sales performance, cutting-edge EV technology, and a refined design language, these flagships are expected to play a crucial role in BYD’s 2026 product offensive and further elevate its standing in the global new energy vehicle market.