A High Court judge has said he regretted having to postpone the delivery of his ruling in a major case that has questioned the legality of the Vehicle Registration Tax (VRT) system.

A judgment is due today in a complex court battle where €131m in damages are being sought for the alleged mishandling of the vehicle registration tax system by Revenue.

An 18-year-old case will decide if drivers were denied a chance to buy cheap secondhand cars, writes investigative correspondent Conor Ryan