In his capacity as VP, Sales & Marketing of Renault India, Treguer will be responsible for sales, marketing, after sales and network development, Renault India said in a statement.
He will be based in Chennai and will report to Renault India Country CEO & Managing Director Sumit Sawhney.
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Treguer has more than 20 years of international experience in multi-dimensional roles within Renault group, it added.
Commenting on the appointment, Sawhney said: "We welcome Rafael in Renault India and are confident that his vast experience and understanding of the dynamics of the international automobile industry will provide necessary impetus to maintain the leadership position as the number one European brand."
In his previous assignments, Treguer had worked for Renault in varied roles at different locations.
His last assignment was as GM Dacia Sales. He was also Marketing Director Dacia and Renault in Romania (2007), Commercial Range Director in Marketing Direction, world wide (2005).