With no Fast Six pole position shootout at the Detroit double-header, the all-important top 12 session got underway with some drivers on used red-walled tyres to do their sighting laps and some on primaries.
Ferrucci put his Rahal Letterman Lanigan on top early on with a 1m15.5s lap on primaries, but Alex Palou snipped a tenth off that – also on primaries – having let his tyres cool for a …Keep reading