The MSR Acura ARX-06 led four of the five sessions across Friday and Saturday, with Blomqvist new full-time teammate Colin Braun and endurance teammate Helio Castroneves all taking turns at the top.But the battle between Acura and Porsche closed up throughout the sessions, and the Penske-run Porsche 963s were firmly in the pole battle, as the two Acura teams adopted different tactics for ...Keep reading