1560, Not Nigeria, but I believe the owner does a lot of touring in the south of France, Italy and the Alps, so perhaps that why its fitted.
I drove our roadster during 2 years in a hot tropical environment, with high montains, in Reunion Isl. (near Mauritius Isl.) and it never got too hot, even in summer. Around 85° on the temp' gauge as usual.
And we are just back from Italy and Alps passes. Nothing happened as well.
I think this design is maybe made for hardcore racing in Gulf countries or the engine is not a regular one but a "boosted" one (electronicaly and so on) and need this adjustment to survive.