The BYD Sea Lion 05 DM-i features tough yet simple Xinhui Haifeng headlights that perfectly complement the front-end design. The lamp housing incorporates elements that match the chrome accents of the front grille, creating a strong sense of technology. Vertical lines at the top of the LED light cluster contrast with the horizontal lines on either side of the headlights, giving the design rich detailing. Combined with the smoked lamp housing, it delivers a solid and profound visual effect, further enhancing the vehicle's overall presence.

On the sides, the BYD Sea Lion 05 DM-i adopts a wave-like floating roof design, with silver metallic trim around the windows that adds a sense of fashion to the vehicle. The body’s side lines are full and well-defined, with the waistline and lower body lines sculpted naturally and smoothly. The wheels, named "Chasing Waves and Leaping," are sleek and simple, with a strong visual contrast between black and silver metal that creates a dynamic effect. The rear of the car is visually layered, and the through-type taillights are highly recognizable when illuminated. The left and right light clusters are connected by ultra-thin linear light strips, perfectly echoing the design of the front.

In terms of dimensions, the BYD Sea Lion 05 DM-i measures 4,710 mm in length, 1,880 mm in width, and 1,720 mm in height, with a wheelbase of 2,712 mm. The vehicle is equipped with BYD's fifth-generation DM technology, featuring a 1.5L naturally aspirated engine with a maximum output of 74 kW, an EHS electric hybrid system, a plug-in hybrid-specific power blade battery, and a motor delivering up to 120 kW of power.