Pretty standard. They are exclusively Japanese imports because there is only a handful of places you can get second-hand right-hand drive cars. I haven't seen one modded per se but they are mostly used for what they are supposed to be. The market is flooded with mazda 2's at the moment.
From experience with Japanese imports you get:
1. Non-operational radio (frequencies are different) and sat-navs/headunits are in Japanese.
2. Parts can be different, e.g., smaller brakes, inconsistent part numbers, etc.
These are a couple that are currently on sale:
nissan cube - all adverts on www.bazaraki.com
www.bazaraki.com
I do like the rear window pane arrangement, etc. My partner cannot stand anything that even remotely looks like an A2 if that helps!