75*C = 167*F.
Max
oil temp is pretty well known. Minimum temp is a little bit harder to define. But it appears that 180* is about minimum, as best as I can find. Optimal temp is around 200*F (93*C). Below 160*F will cause excessive cylinder wall wear.
I do not believe the Superformance cars come equipped with a thermostat. But that depends on who finished it. You'll have to inspect your car to find out.
But even with a thermostat, it can be difficult to get the
oil temps up when air temps are low.