Alex Gurney, Jon Fogarty, Memo Gidley and Darren Law turn first laps of 2013 in No. 99 GAINSCO Auto Insurance Corvette Daytona Prototype Friday at the Roar Before the Rolex 24 .
The teams faced 150-degree track temperatures in the second day of testing at Indianapolis.
Mechanical gremlins continue to affect Fogarty and Gurney's efforts.
Joe Jennings, Grand-Am Correspondent