Audi maintained its hold on the top of the times in final practice for the Sebring 12 Hours, with Romain Dumas to the fore once again.
Dumas ended up fastest in the only one of the three R18 TDIs to take to the track in the fourth session. The other two R18s had completed their test programs ahead of Friday afternoon's qualifying session for the American Le Mans Series and FIA World Endurance Championship opener and did not run.
Dumas set a best time of 1m48.200s, which was more than 1.5sec up on the second-placed OAK Pescarolo-Judd driven by Guillaume Moreau. Third fastest, a further 0.2sec behind, was the best of the Rebellion Lola-Toyotas in the hands of Andrea Belicchi.
Two HPDs ended up fourth and fifth. Pickett Racing driver Lucas Luhr was just over 0.1sec up on sports car newcomer Karun Chandhok in the JRM entry.
The LMP2 times were led by OAK's Morgan-Judd. Olivier Pla set the best time of 1m51.318s, which was 0.5sec up on the Starworks HPD driven by Stephane Sarrazin.
Richard Lietz jumped to the head of the GT order in the dying seconds in the best of the Felbermayr-Proton Porsches. His 1m59.987s lap put him 0.2sec ahead of Jaime Melo in the Luxury Racing Ferrari.