Ireland

Plates long white front AND back + blue strip left

United Kingdom: White backplate + strip → Ireland.

Yellow dashed outer road lines - very common (essentially never in the UK)

New Zealand: NZ = Pacific vegetation + different signage; Ireland = hedgerows + Irish bilingual signs.

Only European country with yellow diamond warning signs (regulatory signs stay red-border/white)

Signage bilingual English + Irish (italics) - places, words and phrases translated

Chevrons yellow-on-black (UK: white); yield sign says YIELD (UK: GIVE WAY)

Pole warning sticker: lightning bolt but NO man being zapped + often a second outlined rectangular sticker (UK sticker shows the man)

Green-white bollards (not fully unique but great in UK 50-50s); rural gates w/ rounded corners (UK: square - but N. Ireland also rounded!)

Boreens - tiny rural roads w/ a grass strip down the middle (strong in UK 50-50s); drives left; smallcam Gen4

Cream-white buildings w/ black roofs, sometimes grey corner stones; row buildings in cities (British brick still occurs)

Very green agricultural land + hedgerows - often indistinguishable from the UK; wooden poles w/ pole steps + occasional crossbars (also UK/SE/FI); double yellow no-parking lines (also UK/Malta); B&W poles w/ yellow bulb at crossings (like UK)

United Kingdom: Decide via: chevron colour, YIELD, plate backs, pole stickers, gate corners, diamond signs.

West coast: rugged hills, wild brown-yellow moorland, exposed rock (vs neat green east); Donegal: tiny hilly rural roads w/ Gen4; Wicklow Mountains (S of Dublin) look western - but never a coast view + Gen4 small roads

EV Gen4 car (grey back w/ black semicircle) → most of the east + parts of the NW (Dublin also has the normal blue car)

Regional roads 3-digit: first digit = region, anti-clockwise from Dublin (8/9 = newer, non-regional; ~half of the 8s = Dublin metro); area codes grouped by first digit

Tabletop mountains → N-Sligo/Leitrim; Burren NP = grey limestone karst; Cork = the hilly big city