Since you cannot buy a digital copy on GOG, players have a few remaining options to experience this classic:
The GOG version ships with a patched EXE that unlocks modern resolutions (1920x1080, 2560x1440, 4K). The UI scales surprisingly well for a 2006 title. Seeing the Australian V8 Supercars roar down the Surfer's Paradise chicane in proper 16:9 widescreen is night and day compared to the original.