Growth in new vehicle demand in Asia's developing economies is heading for a sharp slow-down in the coming months, as the impact of high oil prices and related inflation filters through into the region's economies. Weakening currencies in the region, and in some countries rising interest rates, are adding to the growing unease. Growing political uncertainty in countries such as the Philippines, Thailand and Taiwan are also having an impact on consumer and business confidence, and the fragile recovery in vehicle sales in these markets is coming under increased pressure