Meshes are in the .P3D files.
Partial Format Of the Meshes:
00 00 00 20 A0 FF FF FF 03 80 XX 75 {2ByteData#1 2ByteData#2}
00 00 00 20 80 FF FF FF 04 80 XX 79 {2ByteData#1 2ByteData#2 2ByteData#3}
00 00 00 20 80 FF FF FF 05 80 XX 78 {4ByteFloatVertex(X,Y,Z)}


CrashMutant.jpg



Use PS2TXDViewer and enable texture filter:
https://www.thegtaplace.com/downloads/f457-ps2-txd-viewer