Allan McNish topped the times for Audi at the Le Mans test day.
The Scot, driving the hybrid Audi R18 e-tron quattro, set a best time of 3m25.927s in the afternoon session of the eight-hour test. That was half a second quicker than Andre Lotterer in the second Audi hybrid, which recorded a 3m26.468s.
McNish, who again co-drives with Tom Kristensen and Rinaldo Capello, said: "The car was very good. We had some ideas after Spa [the hybrid's race debut] and Dindo and Tom took them further, and then I continued to improve the car."
McNish's Audi finished the session early after a crash at Tertre Rouge, which he stressed was his fault. He could have driven back to the pits, but with only one hour to go, the team decided not to risk damaging the car further.
Loic Duval was third fastest in the fastest of non-hybrid Audi turbodiesels. His R18 ultra was only a tenth slower than Lotterer on a 3m26.561s.
Alex Wurz set the best Toyota time of the test during the afternoon. He was only seven tenths behind the third-place Audi.
The fastest time set by a privateer LMP1 car was Danny Watts' morning best in the Strakka Racing HPD ARX-03a. His 3m34.243s was more than second faster than Andrea Belicchi's time in the fastest of the Rebellion Racing Lola-Toyota B12/60s.
Olivier Pla was fastest in LMP2 in both sessions aboard the OAK Racing Morgan-Nissan 2012 LMP2. The Frenchman tested this car, as well as the Judd/BMW-powered version that he will drive in the race, in the absence of Bas Leinders and Maxime Martin.
Luxury Racing Ferrari driver Frederic Makowiecki's time of 3m58.869s from the morning session stood as the best time in GTE Pro. Oliver Gavin was only just over a tenth behind in the afternoon aboard the best of the Corvette C6.Rs.
Allan Simonsen was fastest in GTE Am aboard the factory-entered Aston Martin Vantage GTE.
Pos Cl Drivers Team/Car Time 1. P1 Capello/Kristensen/McNish Audi e-tron 3m25.927s 2. P1 Fassler/Lotterer/Treluyer Audi e-tron 3m26.468s 3. P1 Dumas/Duval/Gene Audi Ultra 3m26.561s 4. P1 Wurz/Lapierre/Nakajima/Buemi Toyota 3m27.204s 5. P1 Davidson/Buemi/Sarrazin/Nakajima Toyota 3m28.298s 6. P1 Bonanomi/Jarvis/Gene Audi Ultra 3m28.765s 7. P1 Leventis/Watts/Kane Strakka HPD 3m34.243s 8. P1 Belicchi/Primat/Bleekemolen Rebellion Lola-Toyota 3m35.357s 9. P1 Prost/Jani/Heidfeld Rebellion Lola-Toyota 3m36.876s 10. P1 Ara/Minassian Pescarolo Dome-Judd 3m37.149s 11. P1 Brabham/Chandhok/Dumbreck JRM HPD 3m37.358s 12. P1 Collard/Boullion/Hall Pescarolo-Judd 3m40.385s 13. P2 Heinemeier Hansson/Nicolet/Pla OAK Morgan-Nissan 3m41.291s 14. P2 Tucker/Bouchut/Diaz Level 5 HPD 3m41.598s 15. P2 Dolan/Hancock/Kurosawa Jota Zytek-Nissan 3m41.738s 16. P1 Moreau/Baguette/Kraihamer OAK Pescarolo-Judd 3m41.790s 17. P2 Nicolet/Lahaye/Pla OAK Morgan-Judd 3m42.036s 18. P2 Marroc/Loeb/Vernay Loeb ORECA-Nissan 3m42.248s 19. P2 Perez-Companc/Ayari/Kaffer Pecom ORECA-Nissan 3m42.443s 20. P2 Martin/Charouz/Graves ADR ORECA-Nissan 3m42.731s 21. P2 Ordonez/Brundle/Brundle Greaves Zytek-Nissan 3m43.083s 22. P2 Mailleux/Lombard/Tresson Signatech ORECA-Nissan 3m43.298s 23. P2 Firth/Hughes/Hartley Murphy ORECA-Nissan 3m43.321s 24. P2 Panciatici/Ragues/Rusinov Signatech ORECA-Nissan 3m43.348s 25. P2 Potolicchio/Dalziel/Kimber-Smith Starworks HPD 3m43.672s 26. P2 Sims/Buurman/Iannetta Status Lola-Judd 3m44.110s 27. P2 Beche/Thiriet/Tinseau TDS ORECA-Nissan 3m44.404s 28. P2 Zugel/Gonzalez/Julian Greaves Zytek-Nissan 3m44.625s 29. P2 Briere/Petersen/Nakano Boutsen ORECA-Nissan 3m45.401s 30. P2 Tucker/Bouchut/Diaz Level 5 HPD 3m46.326s 31. P2 Frey/Hirschi/Meichtry Race Performance ORECA-Judd 3m47.600s 32. CDNT Franchitti/Krumm/Motoyama Highcroft Delta Wing Nissan 3m47.980s 33. P2 Giroix/Johansson/Badey Gulf Lola-Nissan 3m48.063s 34. P2 Holzer/Schultis/Moro/van der Zande Kodewa Lola-Lotus 3m54.087s 35. P2 Deletraz/Ihara/Quick Gulf Lola-Nissan 3m55.132s 36. PC Richard/Ende/Palette ORECA FLM 3m56.496s 37. P2 Ahrabian/Rossiter/Weeda Kodewa Lola-Lotus 3m58.526s 38. P2 Haezebrouck/Thirion/Papin Extreme Limite Norma-Judd 3m58.712s 39. PC Barthez/Bazaud/Caillon ORECA FLM 3m58.734s 40. GTE P Makowiecki Luxury Ferrari 3m58.869s 41. GTE P Gavin/Milner Corvette 3m58.971s 42. GTE P Fisichella/Bruni/Vilander AF Corse Ferrari 3m59.392s 43. GTE A Simonsen/Nygaard/Poulsen Aston Martin 3m59.938s 44. GTE P Taylor/Garcia/Magnussen Corvette 4m00.062s 45. GTE P Fernandez/Mucke/Turner Aston Martin 4m00.128s 46. GTE P Pilet/Curtis/Edwards/Estre IMSA Porsche 4m00.163s 47. GTE P Bergmeister/Long/Holzer Flying Lizard Porsche 4m00.287s 48. GTE P Lieb/Lietz Felbermayr-Proton Porsche 4m00.356s 49. GTE P Bertolini/Beretta/Cioci AF Corse Ferrari 4m00.690s 50. GTE A Bornhauser/Canal/Lamy/Belloc Larbre Corvette 4m01.160s 51. GTE A Neiman/Long/Holzer Flying Lizard Porsche 4m01.284s 52. GTE P Walker/Cocker/Wills JMW Ferrari 4m01.459s 53. GTE A Armindo/Narac/Pons IMSA Porsche 4m02.548s 54. GTE A Ried/Roda/Ruberti Felbermayr-Proton Porsche 4m02.977s 55. GTE A Belloc/Bourret/Gibon/Lamy Larbre Corvette 4m04.016s 56. GTE A Rodrigues/Ferte/Illiano JMB Ferrari 4m04.779s 57. GTE A Ehret/Montecalvo/Jeannette Luxury Ferrari 4m05.018s 58. GTE A Kauffman/Aguas/Vickers AF-Waltrip Ferrari 4m05.553s 59. GTE A Perazzini/Cadei/Griffin AF Corse Ferrari 4m07.075s 60. GTE A Krohn/Rugolo Krohn Ferrari 4m08.295s 61. GTE A Camathias/Daniels JWA Porsche 4m09.532s