Updated : June 2020

Below you can notice that total domestic sales of cars, including passengers cars had picket up a bit during 2018 and 2019, after a few years of lesser sales. 2020 will be different with the Corona virus having effects on the local economy and the world economy. Vehicle exports seem to hover between 1 million and 1.2 million units for quite a few years now.

When looking at total local sales and passenger cars sales, you can see that more pick-up trucks are actually sold than passenger cars, suggesting that most cars are used for work-related activities, not just commuter traffic.

Source : Thailand Automotive Institute

Year :	Domestic Wholesale : (total Passenger Cars)	Vehicle Exports :
1993	438,634 (174,228)
1994	462,884 (155,670)
1995	547,758 (163,371)
1996	561,523 (172,730)	14,020
1997	349,033 (132,060)	42,218
1998	140,402 (44,235)	67,857
1999	218,330 (66,858)	125,702
2000	262,189 (83,106)	152,835
2001	297,052 (104,502)	175,299
2002	409,262 (126,253)	181,471
2003	533,176 (179,005)	235,122
2004	628,265 (209,110)	332,053
2005	703,261 (188,211)	440,705
2006	682,163 (195,458)	538,966
2007	631,251 (182,767)	690,100
2008	614,078 (238,990)	775,652
2009	548,871 (238,773)	535,596
2010	786,096 (362,561)	896,065
2011	796,123 (377,621)	735,627
2012	1,434,752 (683,306)	1,020,259
2013	1,330,680 (656,412)	1,119,205
2014	881.883(411,413)	1,128,102
2015	799,632(359,111)	1,204,895
2016	770,423(329,214)	1,188,515
2017	871,650(346,250)	1,139,696
2018	1,041,739(511,963)	1,140,969
2019	1,007,552(468,638)	1,054,103
2020

 

Production of passenger cars and pick-up trucks in Thailand by brand in 2019. It is clear that Japanese brands are most sold in the country.
General Motors will leave the Thai market in 2020, and thus also Chevrolet.

 

See also : Cars, Pick-up Trucks, Motorcycles sold in 2019 (last complete year) in Thailand.

Motorcycle Domestic Sales and Exports.
Year	Total Local Production :	Local Sales :	Exports : (CBU &CKD)
1993		1,009,565
1994		1,276,630
1995		1,464,970
1996	1,437,794	1,236,159	177,635
1997	1,081,044	910,664	137,055
1998	600,497	526,845	244,546
1999	846,426	604,010	214,310
2000	1,125,723	783,678	267,248
2001	1,209,995	907,100	272,301
2002	1,961,809	1,327,675	585,320
2003	2,378,491	1,766,860	604,995
2004	2,867,295	2,026,841	831,287
2005	2,358,510	2,112,426	1,337,586
2006	2,079,555	2,054,588	1,575,393
2007	1,652,773	1,598,613	1,790,739
2008	1,923,651	1,703,376	1,252,584
2009	1,635,249	1,535,461	588,398
2010	2,026,401	1,845,997	816,427
2011	2,045,017	2,007,080	1,133,002
2012	2,606,161	2,130,041	856,935
2013	2,218,625	2,004,498	935,747
2014	1,842,708	1,701,525	887,980
2015	1,800,623	1,639,085	934,994
2016	1,820,358	1,738,231	924,917
2017	2,055,193	1,810,771	849,081
2018	2,063,076	1,788,323	886,275
2019	1,948,480	1,718,587	948,839

Source : Thailand Automotive Institute