/* Query for cost and refitted capacity */

			auto [ret, veh_id, refit_capacity, refit_mail, cargo_capacities] = Command<CMD_BUILD_VEHICLE>::Do(DC_QUERY_COST, this->window_number, this->sel_engine, true, cargo, INVALID_CLIENT_ID);

			if (ret.Succeeded()) {

				this->te.cost          = ret.GetCost() - e->GetCost();

				this->te.capacity      = refit_capacity;

				this->te.mail_capacity = refit_mail;

				this->te.all_capacities = cargo_capacities;

				return;

			}

		}

		/* Purchase test was not possible or failed, fill in the defaults instead. */