Nobody asked but where you found these?
Circuits / Maps /
<Map name="Alpine" texture="Maps\MAP_Alpine.dds">
<Coord realx="229.751" realz="-204.364" mapx="28" mapy="19" />
<Coord realx="1088.529" realz="-630.085" mapx="88" mapy="20" />
<Coord realx="398.507" realz="-3905.588" mapx="144" mapy="236" />
<Coord realx="3364.874" realz="-9430.357" mapx="482" mapy="479" />
</Map>
<Map name="Arc_Baleine" texture="Maps\MAP_Arc_Baleine.dds">
<Coord realx="-157.162" realz="1111.888" mapx="0" mapy="0" />
<Coord realx="771.35" realz="698.488" mapx="512" mapy="0" />
<Coord realx="-570.563" realz="183.376" mapx="0" mapy="512" />
<Coord realx="357.949" realz="-230.024" mapx="512" mapy="512" />
</Map>
<Map name="City_Tour" texture="Maps\MAP_citytour.DDS">
<Coord realx="-124,461" realz="1119,936" mapx="0" mapy="0" />
<Coord realx="1072,647" realz="483,422" mapx="512" mapy="0" />
<Coord realx="-760,976" realz="-77,173" mapx="0" mapy="512" />
<Coord realx="436,133" realz="-713,687" mapx="512" mapy="512" />
</Map>
<Map name="Magny_Cours_Club" texture="Maps\Map_Magny-Cours_Club.dds">
<Coord realx="6.179" realz="531.043" mapx="0" mapy="0" />
<Coord realx="-464.828" realz="135.822" mapx="0" mapy="512" />
<Coord realx="-69.606" realz="-335.186" mapx="512" mapy="512" />
<Coord realx="401.401" realz="60.036" mapx="512" mapy="0" />
</Map>
<Map name="Magny_Cours_GP" texture="Maps\Map_Magny-Cours_GP.dds">
<Coord realx="-144.701" realz="662.626" mapx="0" mapy="0" />
<Coord realx="-735.35" realz="-41.282" mapx="0" mapy="512" />
<Coord realx="-31.442" realz="-631.931" mapx="512" mapy="512" />
<Coord realx="559.207" realz="71.977" mapx="512" mapy="0" />
</Map>
<Map name="Magny_Cours_National" texture="Maps\Map_Magny-Cours_National.dds">
<Coord realx="-144.701" realz="662.626" mapx="0" mapy="0" />
<Coord realx="-735.35" realz="-41.282" mapx="0" mapy="512" />
<Coord realx="-31.442" realz="-631.931" mapx="512" mapy="512" />
<Coord realx="559.207" realz="71.977" mapx="512" mapy="0" />
</Map>
<Map name="Mondello_International" texture="Maps\MAP_Mondello_International.dds">
<Coord realx="-264.992" realz="419.336" mapx="0" mapy="0" />
<Coord realx="312.641" realz="167.862" mapx="512" mapy="0" />
<Coord realx="61.167" realz="-409.772" mapx="512" mapy="512" />
<Coord realx="-516.466" realz="-158.298" mapx="0" mapy="512" />
</Map>
<Map name="Mondello_Short" texture="Maps\MAP_Mondello_Short.dds">
<Coord realx="36.508" realz="439.895" mapx="0" mapy="0" />
<Coord realx="315.604" realz="146.415" mapx="512" mapy="0" />
<Coord realx="22.125" realz="-132.681" mapx="512" mapy="512" />
<Coord realx="-256.972" realz="160.798" mapx="0" mapy="512" />
</Map>
<Map name="Mondello_Intermediate" texture="Maps\MAP_Mondello_Intermediate.dds">
<Coord realx="-264.992" realz="419.336" mapx="0" mapy="0" />
<Coord realx="312.641" realz="167.862" mapx="512" mapy="0" />
<Coord realx="61.167" realz="-409.772" mapx="512" mapy="512" />
<Coord realx="-516.466" realz="-158.298" mapx="0" mapy="512" />
</Map>
<Map name="Mondello_National" texture="Maps\MAP_Mondello_National.dds">
<Coord realx="-221.955" realz="270.576" mapx="0" mapy="0" />
<Coord realx="311.067" realz="184.045" mapx="512" mapy="0" />
<Coord realx="224.536" realz="-348.977" mapx="512" mapy="512" />
<Coord realx="-308.486" realz="-262.446" mapx="0" mapy="512" />
</Map>
</Map>
<Map name="Monza_Oval" texture="Maps\MAP_Monza_Oval.dds">
<Coord realx="1141.413" realz="1632.864" mapx="0" mapy="0" />
<Coord realx="2058.401" realz="-289.643" mapx="512" mapy="0" />
<Coord realx="135.894" realz="-1206.631" mapx="512" mapy="512" />
<Coord realx="-781.094" realz="715.876" mapx="0" mapy="512" />
</Map>
<Map name="Nordschleife08" texture="Maps\Map_Nordschleife08.dds">
<Coord realx="-604.4462" realz="6448.6665" mapx="0" mapy="0" />
<Coord realx="4717.0761" realz="4713.2739" mapx="1024" mapy="0" />
<Coord realx="-2339.8386" realz="1127.1435" mapx="0" mapy="1024" />
<Coord realx="2981.6843" realz="-608.2409" mapx="1024" mapy="1024" />
</Map>
<Map name="Par_le_Palais" texture="Maps\MAP_Parlepalais.DDs">
<Coord realx="-100.771" realz="1148.457" mapx="0" mapy="0" />
<Coord realx="1036.016" realz="465.406" mapx="512" mapy="0" />
<Coord realx="-783.822" realz="11.67" mapx="0" mapy="512" />
<Coord realx="352.965" realz="-671.381" mapx="512" mapy="512" />
</Map>
<Map name="Rockford_Ridge_Downtown" texture="Maps\MAP_RIDGEFORDdowntown.dds">
<Coord realx="697.465" realz="147.286" mapx="19" mapy="16" />
<Coord realx="693.586" realz="-1249.023" mapx="315" mapy="400" />
<Coord realx="990.857" realz="-1704.194" mapx="493" mapy="462" />
<Coord realx="896.505" realz="-51.257" mapx="116" mapy="31" />
</Map>
<Map name="Rockford_Ridge_Mountain_Route" texture="Maps\MAP_RIDGEFORDMOUNTAIN.dds">
<Coord realx="-3.134" realz="242.297" mapx="213" mapy="228" />
<Coord realx="70.801" realz="-439.556" mapx="264" mapy="340" />
<Coord realx="548.664" realz="-1391.117" mapx="389" mapy="476" />
<Coord realx="1320.652" realz="-558.734" mapx="478" mapy="296" />
</Map>
<Map name="Brands_Hatch_GP" texture="Maps\MAP_Brands_Hatch_GP.dds">
<Coord realx="123.1034" realz="1043.9865" mapx="0" mapy="0" />
<Coord realx="1096.9713" realz="1043.9865" mapx="512" mapy="0" />
<Coord realx="1096.9713" realz="70.1185" mapx="512" mapy="512" />
<Coord realx="123.1034" realz="70.1185" mapx="0" mapy="512" />
</Map>
<Map name="Brands_Hatch_Indy" texture="Maps\MAP_Brands_Hatch_INDY.dds">
<Coord realx="287.6526" realz="1152.0984" mapx="0" mapy="0" />
<Coord realx="838.4115" realz="978.1376" mapx="512" mapy="0" />
<Coord realx="664.4507" realz="427.3787" mapx="512" mapy="512" />
<Coord realx="113.6918" realz="601.3395" mapx="0" mapy="512" />
</Map>
Found the texture files for the tracks/cars but they're .gft files, you need an official PS3 SDK to manipulate these.