Buying car in NI

[DoodleLovin]

I’m after a new car this year.
I live in the Republic- would it make sense for me to travel North (where cars are UK prices so loads cheaper) and then register it in ROI? Any advice?

I think you're going to be disappointed. See here:

www.citizensinformation.ie/en/moving_country/moving_to_ireland/coming_to_live_in_ireland/importing_car_into_ireland.html#l76691