Show off your cars and liveries
Judge picks winners, 3rd-2nd-1st
1st place becomes judge, picks category. Stuff like fwd, rwd, Japanese, muscle, 90s, 80s, yellow, green, etc.
Old Gran Turismo fan here and the car show lobbies were insanely fun but obviously never official, but I don’t see why they couldn’t be.
You could have podiums for winners, stages to show off the cars etc. etc., make it all fancy and official. It would create extra incentive to use the livery maker and show off your made or downloaded liveries. Incorporate awards or something for liveries or livery creators that win the most car shows. All kinds of possibilities open up.