Pla turned in a lap of 1min35.794sec on only his fourth of 29 laps to soar to the top, while Bomarito’s best was a 1:35.874, completing the Mazda RT24-P’s 1-2.
That was four tenths quicker than the best of the opposition, the Action Express Racing Cadillac DPi-V.R of Filipe Albuquerque, which in turn was just a tenth faster than Indy 500 winners Juan Pablo Montoya and Helio Castroneves in the two Acura Team Penske ARX-05s.
The healthier-looking 2020 LMP2 field saw Simon Trummer top the class in the singleton PR1/Mathiasen Motorsports Oreca, ahead of Nicolas Lapierre in the similar car of Starworks Motorsport and Henrik Hedman in the DragonSpeed machine.
In GT Le Mans, one of last year’s Rolex 24 GTLM-class winners and the IndyCar Rookie of the Year, Colton Herta, sent the #25 BMW M8 GTE to the top of the times by a quarter of a second, ahead of Laurens Vanthoor and Fred Makowiecki in their Porsche 911 RSR-19s.
Daniel Serra was next up in the Risi Competizione Ferrari 488 GTE ahead of the second BMW and the two new Corvette C8.Rs.
GTD saw a Lamborghini Huracan GT3 Evo 1-2-3 led by the GRT Magnus entry of Marco Mapelli followed by its semi-sister car, the Grasser Racing Team car of Steijn Schothorst. Brandon Gdocivc was third for Precision Performance Motorsports.
Mario Farnbacher and Alvaro Parente were fourth and fifth in the Meyer Shank Racing Acura NSX GT3s, followed by Jeroen Bleekemolen in the Black Swan Racing Porsche 911 GT3 R.
Saturday’s third practice begins at 10.15am local (Eastern) time, with FP4 following at 3.35pm and qualifying for GTD and LMP2 at 4.15pm.