Hi all maybe there is something I do not understand, but is there a way to have the in-game spotter to tell you if/when an opponent is at your left or right ? In game I selectet "spotter detail" high, but it only tells me the lap time, never if/when there is an opponent on my side ...
Nope, doesn’t do that natively, you’d need to use a third party app like Crew Chief => https://thecrewchief.org/
Crew chief is IMO an outstanding plugin. If you use it consider making a small donation to thank them for this great tool.
It should do it on ovals, but nowhere else. CC is a very popular option to enhance the experience though.