Airplanes made it so that people don't think about making a race so quickly.
But airplanes are not always there & races can be build on difficult locations for airplanes like centre of cities or at those "forrests" near the farms.
& maybe people should start up a special forces team against rustlers if it really annoys them.
No changes in script needed.
About the skins & spawnlocations, maybe they could explain it in a future tutorial.
To remove it sux.