[5] Acar died on 4 February 1976, aged 47, from intracerebral hemorrhage, following his fall from a ladder while he was working on a wall relief.

This award became a turning point for him, because he won one of the two scholarships allocated to foreign young artists by the Paris Biennale.

He took part at the Museum of modern art in Le Havre and Galerie Lacloche in Paris with his private exhibitions in 1962 and 1963.

In 1975, he accompanied the Turkish theater company to Paris and created the masks for the play The Caucasian Chalk Circle.

[5] After Acar joined the socialist Workers Party of Turkey in the 1960s, his works did not find buyers, so he had to earn a living as a fisherman and barkeeper.

He accompanied the street theater Devrim İçin Hareket ("Movement for Revolution"), which played at squares, strikes and protest rallies in 1968.

Acar's metal sculpture Kuşlar ("The Birds") was selected to be displayed on the front facade of the İMÇ İstanbul Manifaturacılar Çarşısı (Istanbul Manufacturers Bazaar),[5] located on Atatürk Boulevard between the Valens Aqueduct and the Unkapanı neighbourhood.

His large-scale metal sculpture crafted in 1966 and titled "Türkiye", which stood in front of the Emek Business Center in Kızılay, Ankara, and depicted the lost lands in Anatolia due to becoming arid, was removed later, put in a storage and was subsequently sold for scrapping.

Crafted in 1974, his 13 m (43 ft)-high metal relief composition made of automobile parts and scrap iron, which was placed on a wall at the social facilities of "Maden-İş Sendikası" ("Miners Union") in Gönen and depicted a worker, his family and employer, was removed after the 1980 military coup and put in storage.

Crafted in 1975, his giant sculpture in the form of a hand in honor of former governor of Antalya Haşim İşcan was removed some time later and put in storage.