Confronting altitude and heat will be the focus for in-form Kiwi rally driver Hayden Paddon in his final few days' build-up to the rally of Mexico.

Paddon heads into the rally after a pleasing second-place finish in Sweden, but now must adapt to the gravel surface, while also battling high altitude and hot temperatures.

He says it adds in a whole new mental aspect of preparation.

Paddon says you get up to nearly 3,000m and the power and control of the car becomes tougher.

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Paddon is fourth overall in the WRC standings heading into the rally. World champion Sebastien Ogier has won the first two rallies of the year.