[MIRROR] just some init fixes (#9794)

Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>

code/modules/vehicles/Securitrain_vr.dm

@@ -59,10 +59,10 @@
 //-------------------------------------------
 // Standard procs
 //-------------------------------------------
-/obj/vehicle/train/security/engine/New()
-	..()
+/obj/vehicle/train/security/engine/Initialize()
 	cell = new /obj/item/cell/high(src)
 	key = new key_type(src)
+	. = ..()
 	var/image/I = new(icon = 'icons/obj/vehicles.dmi', icon_state = "cargo_engine_overlay", layer = src.layer + 0.2) //over mobs
 	add_overlay(I)
 	turn_off()	//so engine verbs are correctly set

code/modules/vehicles/quad.dm

@@ -216,8 +216,8 @@
 		return 1
 	return 0
 
-/obj/vehicle/train/trolley/trailer/New()
-	..()
+/obj/vehicle/train/trolley/trailer/Initialize()
+	. = ..()
 	update_icon()
 
 /obj/vehicle/train/trolley/trailer/Moved(atom/old_loc, direction, forced = FALSE)

code/modules/vehicles/rover_vr.dm

@@ -61,10 +61,10 @@
 //-------------------------------------------
 // Standard procs
 //-------------------------------------------
-/obj/vehicle/train/rover/engine/New()
-	..()
+/obj/vehicle/train/rover/engine/Initialize()
 	cell = new /obj/item/cell/high(src)
 	key = new(src)
+	. = ..()
 	turn_off()	//so engine verbs are correctly set
 
 /obj/vehicle/train/rover/engine/Move(var/turf/destination)