Got it, and there're small mistakes here

*1987
https://www.imcdb.org/vehicle_1581981-Yue-Loong.html
*Model origin: JP — Built in: TW — Made for: RC
https://www.imcdb.org/vehicle_1583916-Yue-Loong.html
*No need to add (by default) since round headlights are visible, so [YLN-352] for sure
https://www.imcdb.org/vehicle_1023958-Yue-Loong-Bobby-C120.html
https://www.imcdb.org/vehicle_469205-Yue-Loong-Bobby-C20.html


It should be list as DTS precisely


1980+ [YLN-351]
https://www.7car.tw/articles/read/31677/second_29

Since I'm not allowed to correct the message
I'll just update at here:
1.
YLN-921 should be 1985+, and the year range of "YLN-921 GX" is (1985-1992)
2.
Can't find any info about "YLN-923 GX", perhaps this trim doesn't even exist
Edit:
Of course there were no "YLN-923 GX", because Yue Loong kept produce "YLN-921 GX" until 1992