They weren't AI racers. They were low-poly, flickering models of cars that weren't in the game—modern SUVs and futuristic sleek racers, all crumpled and "cracked," their textures stretched and bleeding. They were parked along the track like graveyard monuments.
If you find the base game too limiting, these community-made "remakes" and packs modernize the experience: Rally Trophy Remake rally trophy mods cracked
: Modern displays require a specific widescreen mod to prevent the image from stretching and to support 1080p or 4K resolutions. Popular Mods and Projects They weren't AI racers