A crawled vehicle for the preparation of ski pistes, in particular a snowgroomer vehicle; the crawled vehicle comprising: - an internal combustion engine ; - an engine compartment wherein the internal combustion engine is housed; - an air inlet opening to catch air from the outside of the crawled vehicle ; - a first channel connected and fed by the air inlet opening with air coming from outside the crawled vehicle; - a second channel for hot air, preferably connected to the engine compartment , to be fed with hot air coming from the internal combustion engine ; - a third channel for air, coupled to the internal combustion engine to feed the internal combustion engine with air; - an air filter arranged along the third channel and upstream of the internal combustion engine ; - a connection element connected to the first channel , to the second channel and third channel ; and - an air adjusting device to adjust the air temperature in the third channel and comprising a shutter coupled to the first channel and/or to the second channel and/or to the connection element ; and a control device controlling a position of the shutter to adjust the temperature of the air entering the third channel , wherein the crawled vehicle comprises a turbine arranged along the third channel between the air filter and the internal combustion engine ; and a cooler arranged along the third channel between the turbine and the internal combustion engine ; and wherein the control device comprises a third temperature sensor arranged between the cooler and the internal combustion engine for measuring a third temperature of the air exiting the cooler ; the control device being configured to adjust a position of the shutter , preferably by means of an actuator , on the basis of the third temperature measured. - an internal combustion engine ; - an engine compartment wherein the internal combustion engine is housed; - an air inlet opening to catch air from the outside of the crawled vehicle ; - a first channel connected and fed by the air inlet opening with air coming from outside the crawled vehicle; - a second channel for hot air, preferably connected to the engine compartment , to be fed with hot air coming from the internal combustion engine ; - a third channel for air, coupled to the internal combustion engine to feed the internal combustion engine with air; - an air filter arranged along the third channel and upstream of the internal combustion engine ; - a connection element connected to the first channel , to the second channel and third channel ; and - an air adjusting device to adjust the air temperature in the third channel and comprising a shutter coupled to the first channel and/or to the second channel and/or to the connection element ; and a control device controlling a position of the shutter to adjust the temperature of the air entering the third channel , wherein the crawled vehicle comprises a turbine arranged along the third channel between the air filter and the internal combustion engine ; and a cooler arranged along the third channel between the turbine and the internal combustion engine ; and wherein the control device comprises a third temperature sensor arranged between the cooler and the internal combustion engine for measuring a third temperature of the air exiting the cooler ; the control device being configured to adjust a position of the shutter , preferably by means of an actuator , on the basis of the third temperature measured. <EOS>