Obviously it's an irrilevant aspect for races, but it would be nice if iGP drivers too may choose their own race number instead of changing it year by year as in actual F1, leaving #1 to the reigning champion.
What a good suggestion. If I remember correctly, a little more customization has been requested with the appearance of the driver, the helmet or the team logo.
^^ Developers work very hard and will hopefully add this soon ^^ (Great suggestion though, I remember donkeys years ago custom team logos was a thing)^^