From the age of eight, Alex Denning was competing in karting, first in Ireland and then internationally. Now 24, he races for Elite Motorsport in conjunction with legendary car maker McLaren behind the wheel of an Artura GT4. Denning has the lean build of a racing driver, who is in the gym daily and nibbles a protein ball as we sit down to discuss his rapid rise from Motorsport Ireland Young Driver of the Year three years ago.  Last year he had two podium finishes out of 45 cars in Barcelona driving the Artura. Denning has the fierce focus of…