No Carmageddon: Max Damage modding subforum yet, so posting this here until it gets created & moved :)
You might want to bring the camera a little closer to the vehicle to compensate the higher FOV.
1. Go to "...\Carmageddon Max Damage\ZAD\" directory and rename the original "scripts.zad" file to "scripts_main.zad" (or anything else). This is to make sure that the game loads the modded files we'll be adding.
2. Copy & paste zmod_scripts.zad to "...\Carmageddon Max Damage\ZAD\" directory.
Sadly, multiplayer is locked out, so this is more of a proof of concept.