IMSA’s premier sportscar series makes its racing debut at the tight and twisty 1.654-mile, nine-turn temporary street circuit in downtown Detroit on Saturday, with its GTP and GTD Pro classes making up a 21-car field.Tandy won the pole from Porsche Penske Motorsport team-mate Dane Cameron by 0.124s in qualifying on Friday afternoon, and although his time was 3.7s quicker than the fastest GTD Pro …Keep reading