In terms of appearance, the BYD Seagull 2025 adopts a "sharp ice-breaking" sports front design style, giving it a more fashionable look with very sharp lines. The headlight group design is optimized with significantly more LEDs in the daytime running lights, resulting in more even brightness and enhanced high-beam lighting, offering higher brightness, a wider illumination range, and safer night driving.

On the side, the BYD Seagull 2025 has a compact, agile body with a sharp waistline and an upward curve, along with a two-tone, concave rib design on the doors that gives a muscular feel. It comes standard with heated exterior rearview mirrors and is equipped with new 16-inch wheels. The vehicle’s dimensions are 3780 mm in length, 1715 mm in width, 1540 mm in height, and it has a 2500 mm wheelbase.

The rear features a mecha-inspired design with through-type taillights and a centered "BYD" logo for a striking look. Aerodynamic components with a diffuser shape below the rear bumper further enhance aerodynamic performance.