Dennis Olsen driving the #4 Porsche 911 GT3 Cup during the Porsche Supercup race at Spa-Francorchamps, 27 August 2017 As the season approaches its latter stages, the duel for the crown of the Porsche Mobil 1 Supercup has come to a head. Porsche Junior Dennis Olsen (N/Walter Lechner Racing Team)...
