Most of the game's data is in files with the .HOG extension.
The .HOG files are compressed but decompressed data can be seen in PCSX2 Savestates EEMEMORY.BIN (unzip the savestate using the program 7Zip)
LTcar.jpg

Format of some of the meshes:
40 40 40 40 04 01 00 01 [NN] 80 XX 78
{4ByteFloatVertexes(X,Y,Z)}