diff --git a/ai/default/default.c b/ai/default/default.c
index 7563e391a0..8ccb375a2d 100644
--- a/ai/default/default.c
+++ b/ai/default/default.c
@@ -316,7 +316,7 @@ static void AiHandleReplaceTrain(Player *p)
 
 		if (!CmdFailed(DoCommand(0, v->index, 2, DC_EXEC, CMD_SELL_RAIL_WAGON)) &&
 			  !CmdFailed(DoCommand(tile, veh, 0, DC_EXEC, CMD_BUILD_RAIL_VEHICLE)) ) {
-			VehicleID veh = _new_train_id;
+			VehicleID veh = _new_vehicle_id;
 			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 			DoCommand(0, veh, 0, DC_EXEC, CMD_START_STOP_TRAIN);
 
@@ -345,7 +345,7 @@ static void AiHandleReplaceRoadVeh(Player *p)
 
 		if (!CmdFailed(DoCommand(0, v->index, 0, DC_EXEC, CMD_SELL_ROAD_VEH)) &&
 			  !CmdFailed(DoCommand(tile, veh, 0, DC_EXEC, CMD_BUILD_ROAD_VEH)) ) {
-			VehicleID veh = _new_roadveh_id;
+			VehicleID veh = _new_vehicle_id;
 			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 			DoCommand(0, veh, 0, DC_EXEC, CMD_START_STOP_ROADVEH);
 
@@ -374,7 +374,7 @@ static void AiHandleReplaceAircraft(Player *p)
 
 		if (!CmdFailed(DoCommand(0, v->index, 0, DC_EXEC, CMD_SELL_AIRCRAFT)) &&
 			  !CmdFailed(DoCommand(tile, veh, 0, DC_EXEC, CMD_BUILD_AIRCRAFT)) ) {
-			VehicleID veh = _new_aircraft_id;
+			VehicleID veh = _new_vehicle_id;
 			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 			DoCommand(0, veh, 0, DC_EXEC, CMD_START_STOP_AIRCRAFT);
 
@@ -2382,7 +2382,7 @@ static void AiStateBuildRailVeh(Player *p)
 			if (veh == INVALID_ENGINE) goto handle_nocash;
 			cost = DoCommand(tile, veh, 0, DC_EXEC, CMD_BUILD_RAIL_VEHICLE);
 			if (CmdFailed(cost)) goto handle_nocash;
-			p->ai.wagon_list[i] = _new_wagon_id;
+			p->ai.wagon_list[i] = _new_vehicle_id;
 			p->ai.wagon_list[i + 1] = INVALID_VEHICLE;
 			return;
 		}
@@ -2410,7 +2410,7 @@ handle_nocash:
 	// Try to build the locomotive
 	cost = DoCommand(tile, veh, 0, DC_EXEC, CMD_BUILD_RAIL_VEHICLE);
 	assert(!CmdFailed(cost));
-	loco_id = _new_train_id;
+	loco_id = _new_vehicle_id;
 
 	// Sell a vehicle if the train is double headed.
 	v = GetVehicle(loco_id);
@@ -3163,7 +3163,7 @@ static void AiStateBuildRoadVehicles(Player *p)
 
 	if (CmdFailed(DoCommand(tile, veh, 0, DC_EXEC, CMD_BUILD_ROAD_VEH))) return;
 
-	loco_id = _new_roadveh_id;
+	loco_id = _new_vehicle_id;
 
 	for (i = 0; p->ai.order_list_blocks[i] != 0xFF; i++) {
 		const AiBuildRec* aib = &p->ai.src + p->ai.order_list_blocks[i];
@@ -3454,7 +3454,7 @@ static void AiStateBuildAircraftVehicles(Player *p)
 	 * and offset to the FIRST depot because the AI picks the st->xy tile */
 	tile += ToTileIndexDiff(GetAirport(GetStationByTile(tile)->airport_type)->airport_depots[0]);
 	if (CmdFailed(DoCommand(tile, veh, 0, DC_EXEC, CMD_BUILD_AIRCRAFT))) return;
-	loco_id = _new_aircraft_id;
+	loco_id = _new_vehicle_id;
 
 	for (i=0; p->ai.order_list_blocks[i] != 0xFF; i++) {
 		AiBuildRec *aib = (&p->ai.src) + p->ai.order_list_blocks[i];
diff --git a/aircraft_cmd.c b/aircraft_cmd.c
index d8794b0b2c..83cc43287c 100644
--- a/aircraft_cmd.c
+++ b/aircraft_cmd.c
@@ -260,7 +260,6 @@ int32 CmdBuildAircraft(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 		v->reliability_spd_dec = e->reliability_spd_dec;
 		v->max_age = e->lifelength * 366;
 
-		_new_aircraft_id = v->index;
 		_new_vehicle_id = v->index;
 
 		v->u.air.pos = MAX_ELEMENTS;
diff --git a/aircraft_gui.c b/aircraft_gui.c
index 8b13e6d356..59c7b7c131 100644
--- a/aircraft_gui.c
+++ b/aircraft_gui.c
@@ -76,7 +76,7 @@ static void DrawAircraftImage(const Vehicle *v, int x, int y, VehicleID selectio
 void CcBuildAircraft(bool success, TileIndex tile, uint32 p1, uint32 p2)
 {
 	if (success) {
-		const Vehicle* v = GetVehicle(_new_aircraft_id);
+		const Vehicle* v = GetVehicle(_new_vehicle_id);
 
 		if (v->tile == _backup_orders_tile) {
 			_backup_orders_tile = 0;
@@ -88,7 +88,7 @@ void CcBuildAircraft(bool success, TileIndex tile, uint32 p1, uint32 p2)
 
 void CcCloneAircraft(bool success, TileIndex tile, uint32 p1, uint32 p2)
 {
-	if (success) ShowAircraftViewWindow(GetVehicle(_new_aircraft_id));
+	if (success) ShowAircraftViewWindow(GetVehicle(_new_vehicle_id));
 }
 
 static void NewAircraftWndProc(Window *w, WindowEvent *e)
diff --git a/roadveh_cmd.c b/roadveh_cmd.c
index ae70fc41db..52347e3377 100644
--- a/roadveh_cmd.c
+++ b/roadveh_cmd.c
@@ -175,7 +175,6 @@ int32 CmdBuildRoadVeh(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 		v->reliability = e->reliability;
 		v->reliability_spd_dec = e->reliability_spd_dec;
 		v->max_age = e->lifelength * 366;
-		_new_roadveh_id = v->index;
 		_new_vehicle_id = v->index;
 
 		v->string_id = STR_SV_ROADVEH_NAME;
diff --git a/roadveh_gui.c b/roadveh_gui.c
index 573fda32dc..758463a777 100644
--- a/roadveh_gui.c
+++ b/roadveh_gui.c
@@ -224,7 +224,7 @@ static void ShowRoadVehDetailsWindow(const Vehicle* v)
 
 void CcCloneRoadVeh(bool success, TileIndex tile, uint32 p1, uint32 p2)
 {
-	if (success) ShowRoadVehViewWindow(GetVehicle(_new_roadveh_id));
+	if (success) ShowRoadVehViewWindow(GetVehicle(_new_vehicle_id));
 }
 
 static void RoadVehViewWndProc(Window *w, WindowEvent *e)
@@ -430,7 +430,7 @@ void CcBuildRoadVeh(bool success, TileIndex tile, uint32 p1, uint32 p2)
 
 	if (!success) return;
 
-	v = GetVehicle(_new_roadveh_id);
+	v = GetVehicle(_new_vehicle_id);
 	if (v->tile == _backup_orders_tile) {
 		_backup_orders_tile = 0;
 		RestoreVehicleOrders(v, _backup_orders_data);
diff --git a/ship_cmd.c b/ship_cmd.c
index 4c41718660..e86aae54a2 100644
--- a/ship_cmd.c
+++ b/ship_cmd.c
@@ -890,7 +890,6 @@ int32 CmdBuildShip(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 		v->reliability = e->reliability;
 		v->reliability_spd_dec = e->reliability_spd_dec;
 		v->max_age = e->lifelength * 366;
-		_new_ship_id = v->index;
 		_new_vehicle_id = v->index;
 
 		v->string_id = STR_SV_SHIP_NAME;
diff --git a/ship_gui.c b/ship_gui.c
index 00a364934a..bed2beb5d2 100644
--- a/ship_gui.c
+++ b/ship_gui.c
@@ -304,7 +304,7 @@ void CcBuildShip(bool success, TileIndex tile, uint32 p1, uint32 p2)
 	const Vehicle* v;
 	if (!success) return;
 
-	v = GetVehicle(_new_ship_id);
+	v = GetVehicle(_new_vehicle_id);
 	if (v->tile == _backup_orders_tile) {
 		_backup_orders_tile = 0;
 		RestoreVehicleOrders(v, _backup_orders_data);
@@ -314,7 +314,7 @@ void CcBuildShip(bool success, TileIndex tile, uint32 p1, uint32 p2)
 
 void CcCloneShip(bool success, TileIndex tile, uint32 p1, uint32 p2)
 {
-	if (success) ShowShipViewWindow(GetVehicle(_new_ship_id));
+	if (success) ShowShipViewWindow(GetVehicle(_new_vehicle_id));
 }
 
 static void NewShipWndProc(Window *w, WindowEvent *e)
diff --git a/train_cmd.c b/train_cmd.c
index d8468da91d..c801668d8e 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -626,7 +626,6 @@ static int32 CmdBuildRailWagon(EngineID engine, TileIndex tile, uint32 flags)
 
 			AddArticulatedParts(rvi, vl);
 
-			_new_wagon_id = v->index;
 			_new_vehicle_id = v->index;
 
 			VehiclePositionChanged(v);
@@ -776,7 +775,6 @@ int32 CmdBuildRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
 			v->string_id = STR_SV_TRAIN_NAME;
 			v->u.rail.railtype = e->railtype;
-			_new_train_id = v->index;
 			_new_vehicle_id = v->index;
 
 			v->service_interval = _patches.servint_trains;
diff --git a/train_gui.c b/train_gui.c
index 597c0ce178..cc6f240b88 100644
--- a/train_gui.c
+++ b/train_gui.c
@@ -152,7 +152,7 @@ void CcBuildWagon(bool success, TileIndex tile, uint32 p1, uint32 p2)
 	if (found != NULL) {
 		found = GetLastVehicleInChain(found);
 		// put the new wagon at the end of the loco.
-		DoCommandP(0, _new_wagon_id | (found->index<<16), 0, NULL, CMD_MOVE_RAIL_VEHICLE);
+		DoCommandP(0, _new_vehicle_id | (found->index << 16), 0, NULL, CMD_MOVE_RAIL_VEHICLE);
 		RebuildVehicleLists();
 	}
 }
@@ -163,7 +163,7 @@ void CcBuildLoco(bool success, TileIndex tile, uint32 p1, uint32 p2)
 
 	if (!success) return;
 
-	v = GetVehicle(_new_train_id);
+	v = GetVehicle(_new_vehicle_id);
 	if (tile == _backup_orders_tile) {
 		_backup_orders_tile = 0;
 		RestoreVehicleOrders(v, _backup_orders_data);
@@ -173,7 +173,7 @@ void CcBuildLoco(bool success, TileIndex tile, uint32 p1, uint32 p2)
 
 void CcCloneTrain(bool success, TileIndex tile, uint32 p1, uint32 p2)
 {
-	if (success) ShowTrainViewWindow(GetVehicle(_new_train_id));
+	if (success) ShowTrainViewWindow(GetVehicle(_new_vehicle_id));
 }
 
 static void engine_drawing_loop(int *x, int *y, int *pos, int *sel,
diff --git a/vehicle.c b/vehicle.c
index 7240562f15..ecb3050068 100644
--- a/vehicle.c
+++ b/vehicle.c
@@ -1569,8 +1569,8 @@ int32 CmdCloneVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 	} while (v->type == VEH_Train && (v = GetNextVehicle(v)) != NULL);
 
 	if (flags & DC_EXEC && v_front->type == VEH_Train) {
-		// _new_train_id needs to be the front engine due to the callback function
-		_new_train_id = w_front->index;
+		// for trains this needs to be the front engine due to the callback function
+		_new_vehicle_id = w_front->index;
 	}
 	return total_cost;
 }
diff --git a/vehicle.h b/vehicle.h
index aecb3c0aff..d74a17eb08 100644
--- a/vehicle.h
+++ b/vehicle.h
@@ -416,11 +416,6 @@ static inline Vehicle *GetFirstVehicleFromSharedList(Vehicle *v)
 }
 
 // NOSAVE: Return values from various commands.
-VARDEF VehicleID _new_train_id;
-VARDEF VehicleID _new_wagon_id;
-VARDEF VehicleID _new_aircraft_id;
-VARDEF VehicleID _new_ship_id;
-VARDEF VehicleID _new_roadveh_id;
 VARDEF VehicleID _new_vehicle_id;
 VARDEF uint16 _returned_refit_capacity;