After the sister #48 car driven by Kamui Kobayashi set the pace for Action Express Racing and Cadillac in the first official practice session, Mike Conway put the No. 31 Whelen Engineering-sponsored Cadillac DPi-V.R at the top of the time charts in the second Roar Before the Rolex 24 session for Action Express Racing.
Conway’s time of 1:36.225 fending off a late challenge by Juan Pablo Montoya in the Meyer Shank Racing Acura ARX-05.
Montoya’s late flier put his MSR team within 0.006 seconds of the top time of Session 2 in the team’s first extended running since returning to prototype machinery.
Scott Dixon was third fastest in Chip Ganassi Racing’s No. 01 Cadillac, while Alexander Rossi and Loic Duval completed the top five for Wayne Taylor Racing and JDC-Miller Motorsports, respectively.
GTLM was led by Alexander Sims in the No. 4 Chevrolet Corvette C8.R.
Augusto Farfus placed the No. 24 BMW M8 GTE in the second spot, followed by Jules Gounon in the No. 62 Risi Competizione Ferrari 488 GTE Evo.
Practice resumes at 10:30 a.m. ET on Saturday.