One of my best childhood AMIGA gaming memories! I've played with my younger brother and at the end of each day we wrote down the code the better player unlocked, so we could continue from that point the next day (there was no in-game saving back then!). Fastest bikes were challenging on the longest roads, we had to learn to use breaks sometimes. I remember the grind towards the best bike - I wanted it so much it became my gaming nickname for some time.
The lovely music, funny interactions with other bikers and satisfaction from unlocking new bikes is something I would like to go back to.