[NFS: Undeground 2] Problems with car add-ons

[Danny the Sniper]

I've heard several people saying that their game crashes after installing certain car add-ons (specifically from NFSMods.xyz) and when trying to enter the car lot, so I downloaded several car add-ons I downloaded from that site and created a new profile to confirm that, and when I tried to enter the car lot, the game crashed. Why does that happen, and is there an explanation as to why?

For reference, I use the latest versions of Binary (2.9.0), Extra Options, and Unlimiter.

Any help would be appreciated!