I recently downloaded the glorious Porsche 962c. The car shows up in the UI, but the game will not load it on a track; it just goes back to the UI screen. Any ideas?
Chances are you downloaded the super old ripped/illegally converted mod since there is no scratch made version completed yet.
That said, the mod author probably hasnt updated in ages and isnt compatible with v1.4.3 of Assetto Corsa. Outdated tire model, physics files, sound files, aero files, etc. My guess would be the sound files though.