Just short of 100,000 Micras have been sold in Ireland since its launch in 1983.
As part of the deal, a fleet of vehicles will be supplied to the event organisers to help with running one of the largest women's events of its kind in the world.
Nissan will also be giving away a special edition Micra 30 to one lucky entrant in this year's race which takes place on Monday 3 June. All entrants in the marathon will be entered into a competition to win the Micra when they register for the event.
