The BYD brand distinguishes their passenger car line-up under three "series", namely the Dynasty series (started by the BYD Qin in 2012), a line of higher-end vehicles with "dragon-inspired" designs aimed at the traditional mass markets; the Ocean series (started by the BYD Dolphin in 2021), a line of "ocean-themed" vehicles based on new aesthetic designs by Wolfgang Egger and the modular "e-Platform 3.0", aimed at younger buyers; and the "e" series, a line of fleet vehicles oriented at commercial sales such as ride-hailing and taxi.[5] The Ocean series is further divided into two series, namely battery vehicles named after marine animals (Seagull, Dolphin, Seal and Sea Lion) and plug-in hybrids named after naval ships (Frigate and Destroyer).Dynasty and Ocean series are offered through separate sales network, namely the Dynasty Network and the Ocean Network, and uses separate mobile apps for telematics.