If you insist on me getting hung up on these details, then I’ll have to break each one down and explain it clearly.
BYD’s popular models this year, the Sea Lion 06 EV and Song Ultra EV, are both priced between 160,000 and 190,000 RMB (the Song Ultra EV has an ultra-low entry-level price of 151,900 RMB, which we’ll ignore). These models come standard with the DiLink-100 infotainment system, which uses the 778G chip and features 12GB of RAM and 128GB of storage. Meanwhile, last year’s models—including the BYD Han, Seal 07, Tang, Song L, and Sea Lion 07—which are positioned as premium vehicles, are equipped with the D100 (It is essentially a customized version of the 778G chip for in-vehicle systems).
For certain vehicle models that come standard with the DiLink-100 infotainment system, an advanced driver-assistance system (ADAS) option is available, specifically the "Eye of the Sky B" system. Selecting this configuration will result in the installation of an additional LiDAR sensor on your vehicle, along with an upgrade of the infotainment system from DiLink-100 to DiLink-150. This upgrade includes a professional NVIDIA Orin-X ADAS chip, and the infotainment system chip will be replaced with a D9000 chip modified from a MediaTek chip. The memory configuration is upgraded to 4 GB RAM + 4 GB virtual RAM + 64 GB storage, with an additional 8+64 GB system.
What I mean is that while the 778G chip currently offers sufficient computing power, it severely lacks the potential for OTA updates. Meanwhile, although the D9000 chip in the DiLink-150 system is very powerful, the in-car unit has only 64GB of base storage, which means it is likely to be left without OTA updates in the future. Please note that the storage space used for installing software on the in-car unit does not support external expansion.
Due to the AI infrastructure bubble this year, which has caused prices for memory and storage chips to skyrocket, BYD has downgraded the storage capacity on most of its models from 256GB to 128GB. Typically, the infotainment system alone occupies 70–95GB of storage (the DiLink-150 system takes up approximately 33GB), leaving very little remaining space.