As previously noted, to get max speed minecarts in Minecraft at the moment through the use of the /gamerule command, you'll need to be playing on Snapshot 24w33a or above and also have cheats enabled.

Originally released in Minecraft: Bedrock Edition 1.16.100.52 beta, the /ride command is finally coming to Java Edition in update 1.19.4.

Minecraft players discover a glaring realism issue with the game's latest snapshot update, which added falling leaf particles, pig variants, and more.