@taattor<TemperatureGripCarcas numVertices="11">
<SplineElement x="346.900000" y="0.910000" />
<SplineElement x="350.650000" y="0.940000" />
<SplineElement x="354.400000" y="0.970000" />
<SplineElement x="358.150000" y="1.000000" />
<SplineElement x="361.900000" y="1.000000" />
<SplineElement x="365.650000" y="1.000000" />
<SplineElement x="369.400000" y="1.000000" />
<SplineElement x="373.150000" y="1.000000" />
<SplineElement x="376.900000" y="0.970000" />
<SplineElement x="380.650000" y="0.940000" />
<SplineElement x="384.400000" y="0.910000" />
</TemperatureGripCarcas>
Those are core temps from the c3, and it's a bit different from compound to compound. 373.15 is 100 Celsius, 384.4 is 111.25 Celsius.
<TemperatureGrip numVertices="21">
<SplineElement x="323.150000" y="0.900000" />
<SplineElement x="328.150000" y="0.918000" />
<SplineElement x="333.150000" y="0.936000" />
<SplineElement x="338.150000" y="0.954000" />
<SplineElement x="343.150000" y="0.972000" />
<SplineElement x="348.150000" y="0.990000" />
<SplineElement x="353.150000" y="0.992500" />
<SplineElement x="358.150000" y="0.995000" />
<SplineElement x="363.150000" y="0.997500" />
<SplineElement x="368.150000" y="1.000000" />
<SplineElement x="373.150000" y="1.000000" />
<SplineElement x="378.150000" y="1.000000" />
<SplineElement x="383.150000" y="1.000000" />
<SplineElement x="388.150000" y="1.000000" />
<SplineElement x="393.150000" y="0.990000" />
<SplineElement x="398.150000" y="0.980000" />
<SplineElement x="403.150000" y="0.944000" />
<SplineElement x="408.150000" y="0.908000" />
<SplineElement x="413.150000" y="0.872000" />
<SplineElement x="418.150000" y="0.836000" />
<SplineElement x="423.150000" y="0.800000" />
</TemperatureGrip>
And surface temps as well.
Incidentally, Alfa Romeo very kindly display thier core temps on their steering wheel, which is very clearly visible in night races. If you have a look at Saudi, you'll actually see the C2 stabilize around 110 Celsius, and C3 stabilize around 115, which suggests the in-game temperature ranges are a bit off. Not a huge deal, as tire management isn't that big of a focus, but I thought it was interesting nonetheless.