http://www.armyrecognition.com/finland_finnish_army_wheeled_armoured_vehicle_uk/amv_patria_wheeled_armoured_vehicle_technical_data_sheet_description_information_pictures_photos_uk.html

Here you can read that the Patria turret has "electro hydraulic drives with 360° range"

i'd relate this issue with mine

http://feedback.arma3.com/view.php?id=12384

I'd add that the turret of the marshal can turn even if the engine is inoperable, like when it is out of fuel. Another layer of broken!

Well, realistically, you'd need power to run the drives. Most modern combat vehicles have an internal APU for that purpose.

And the APU is powered by a different energie source than the motor.

On top of that most vehicles still have a redundant manual turret turn control.

This is still a Quality of Life ticket that would be nice to see resolved.

Currently, ALL of the armored vehicles require the engine to be on when turning the turret. It's quite archaic and inconsistent as cars with turrets do not have this requirement. The hunter/ifrit/strider HMG/GMG turret can turn with the engine off, but the Marid and Panther somehow can't?

I'm really surprised at this, I figured there'd be electric drives in most if not all vehicles by 2035.

It's really just a small tweak to the config to change "startEngine = 1;" to "startEngine = 0;"