When comparing with South Korea people must remember that Korea first built an impressive horizontal civilian industry ,with the likes of Samsung,Daewoo,etc,which spurred it's military advances. Turkey does not possess such industry.
Turkish civilian industry is also doing nice things in many different sectors but having difficulty to reveal a well-known World mark in global market.
Contrary to S. Korean example,
The Turkish strategic/vital components of civilian industry is being developed by Turkish defence institutes on electronics/electro-optic/screen/integrated circuit technologies. LED/OLED/Graphen screen cells, Lenses/optics, Transistors, photo-detectors, silicon based IC, GaN technologies have a wide range of usage area in civilian sector. 5G net technology is being developed by our giant Aselsan. Civilian satellite transponders, fully electrical busses/vehicles, national railway technologies such as Traction Control System, Train Control and Management Systems and Signalization Systems which have critical components in the field of Rail Transportation Technologies, are also same story.
Turkish defense land vehicle sector is being supported by Civilian automotive sub-system producers mostly locating in Marmara region.
Turkish naval industry is also being supported by many companies producing ship body mechanisms and components which are actually working for shipyards producing merchant ships.
Turkish aerial industry is advancing very fast. To support ongoing and future projects under the leadership of Tusaş, A big and large industrial complex, hundreds of institutes to be produced solely aerospace parts and components, are being established to serve the future of Turkiye in Kazan region/Ankara.
Those are civilian automotive subsystem producers supporting famous Turkish land vehicles manufacturers.