Figures from the Central Statistics Office (CSO) show 15,384 cars were licensed for the first time in February — a rise of 29.2% compared to the same month last year.
In total, 35,489 new private cars were licensed in the year to the end of February, a rise of 27.3% on the same period in 2014.
The total number of all vehicles licensed was 25,010, compared with 20,419 in the corresponding month last year — an increase of 22.5%
The highest number of new private cars licensed last month, classified by make, was Volkswagen (2,389), followed by Nissan (1,701), Ford (1,640), and Toyota (1,615).
For the year to the end of February 2015, Toyota was the most popular brand with sales of 4,523 new cars. This was followed by Volkswagen (4,273), Ford (3,885), and Nissan (3,219).
The figures make for good reading for a motor industry.
Last month, the Society of the Irish Motor Industry said CSO figures show employment in the industry grew by 4,500 last year, on the back of higher vehicle sales, and now totals close to 42,000.