Testing Lego in Cold and Hot Temperature

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I tested my wheel spinner and hoist at -20 degrees Celsius outdoors (lovely Finnish weather in January), +20 room temperature, and +60 inside a sauna. How the temperature affects top speed and max hoist weight? Will something break?

The spinner results:
-20C 3100rpm (7.1V)
+20C 4800rpm (8.0V)
+60C 4700rpm (8.1V)
+20C 4400rpm (fixed 7.1V voltage)

The hoist results:
-20C 101kg (6.6V)
+20C 132kg (7.5V)
+60C 95kg (8.0V-8.6V)
+20C 101kg (7.6V-8.5V) (motor +60C)
+20C 122kg (7.5V)