Domestic car sales are projected at 780,000 vehicles next year, up 4% from 750,000 units expected for this year, the Federation of Thai Industries (FTI) said on Wednesday.
Sales in the final quarter will be helped by the Motor Expo next month, Surapong Paisitpattanapong, spokesman of the FTI's automobile industry, told a news conference.
In January-October, vehicle sales dropped 0.7% from a year earlier to 617,659 cars. Sales fell 9.3% in 2015.
Annual domestic sales have been weak since May 2013, following the fading effect of a government first-car subsidy scheme that ended in 2012, when sales jumped 81%.
Thailand is a regional vehicle production and export base for the world's top carmakers.