by @Kerc

ref: https://community.bistudio.com/wiki/sendSimpleCommand

At the moment the turning commands are useless with AI as there's some massive delay (even without regard for the radio message) that makes it virtually impossible to do anything but make a vehicle spin around.

Is there a chance of seeing an improvement/additional parameter or a new command altogether?

Something like

unit CommandTurn direction

or an altSyntax for sendSimpleCommand

vehicle sendSimpleCommand ["TURN",direction];

The current ways to get an AI driver to face a particular direction are varying levels of suck/broken.

Usually by ordering them to move somewhere in the distance in the direction you want

that or removing the delay so it works like player direct command does.