Domestic car sales in July rose 25.7% from a year earlier to 81,946 units, after a 25.9% increase in June, the Federation of Thai Industries said on Monday.
Sales were lifted by economic growth, launch of new models and higher farm prices.
Auto exports in July rose 0.15% from a year earlier, after June's 2.36% increase.
Thailand is a regional vehicle production and export base for the world's top automobile manufacturers.