The analysis was conducted by Cartell.ie and CarsIreland.ie,
A second hand car has risen in value by 16 percent this year, compared to last.
The Irish Independent reports this is because of a 'perfect storm' in the market, with UK import numbers falling due to Brexit.
Additionally a slow in sales of new cars means drivers are holding on to their current ones for longer.
The analysis was done by Cartell DOT-ie and CarsIreland DOT-ie, which say they've never seen anything like this before.