Question: What is the date of death of the founder of Tofaş?
Sentence (from "Tofaş"): Tofaş (acronym for "Türk Otomobil Fabrikası Anonim Şirketi"; pronounced) is a Turkish automaker which was established in 1968 by Vehbi Koç, who was the founder of Koç Holding, based in Bursa, Turkey, where the manufacturing plant of the company is located.
Relevant evidence: Yes