In addition, everyone who enters the Dublin City Marathon will be entered into a draw to win a third Fluence Z.E.
Aughney said: "We are without an overall title sponsor for the second year now, which is very challenging for us as organisers.
"It is brilliant to have the support of Renault Ireland this year, who are providing a total of three top of the range electric cars to lead our prize fund."
Speaking at the announcement, Duncan Minto, Managing Director, Renault Ireland, said that the Dublin City Marathon was a good fit for Renault, which is busy opening new dealerships in the Dublin area and will soon be announcing a new Northside location.
Minto said: "The Fluence Z.E. is one of our range of 100% electric vehicles and its clean, silent engine and automatic transmission gives you the maximum torque from the off, with smooth and responsive acceleration, a lot like many of the participants who will be participating in the Marathon!"