Why not change to Indycar qualifying format for road courses.
Road/Street Course Qualifying
Qualifying is broken into three segments, progressively narrowing the field to determine the pole winner. Segment 1 is broken into two groups determined by the top time posted by each car in the final practice session before qualifying.
Segment 1 – Each of the two groups receives 15 minutes of track time, inclusive of full-course caution conditions, with the fastest lap by each car determining its qualifying position. The fastest six cars from each group advance to Segment 2, while the remaining cars are assigned positions 13 and back to the rear of the grid. Group 1 drivers occupy the odd-numbered positions (13, 15, 17, etc.), while Group 2 drivers occupy the even-numbered positions (14, 16, 18, etc.) based on their fastest lap times during the segment.
Segment 2 – The 12 advancing cars receive 15 minutes of track time, inclusive of full-course caution conditions, with the fastest lap by each entry determining its qualifying position. The fastest six advance to the Firestone Fast Six shootout, while the remaining six cars are ranked in positions 7-12 based on their fastest laps during the segment.
Firestone Fast Six – The six advancing cars receive 15 minutes of guaranteed green-flag track time. At the end of the session, the cars are ranked 1-6 based on their fastest laps during the segment.