Another type that is actually no longer advanced, yet the Tang Army could not find a replacement for, is the Lion-style armored reconnaissance vehicle. The design philosophy of this thing is correct, but it lacked a better successor.
Germany Three's "Big Eight-Wheeled" armored vehicle performed not too badly during World War II, but because of the defeat, this type of equipment did not continue to develop, and it can basically be said to have lost its lineage.
Soviet-style wheeled armored vehicles could not inherit the role of Germany's wheeled armored reconnaissance vehicles, and their reluctant use did not offer much performance advantage.
The armored reconnaissance battalions of the Tang Country also fell into danger with the performance improvement of other countries' armored vehicles.