Now what? The secret sauce is tiling. [facklere] used KMZfactory, a free map editor for Garmin maps that goes the extra mile to split the tiles for you, keeping them under the 1MP limit.

The entry-level Garmin Drive 52 can be bought with maps of just the UK and Ireland (£119.99) or with all of Europe (£149.99). It misses out on hands-free phone calling and Amazon Alexa ...