Newly-crowned champion Yvan Muller set the pace in testing ahead of the World Touring Car Championship's penultimate event of 2013 at Shanghai.
The Frenchman hit the front early on, was gradually bumped down to fifth and then hit the front again with a 1m55.643s that ensured he and his RML Chevrolet squad ended the 30 minutes on top.
ROAL BMW man Tom Coronel came closest to denying Muller, getting to within two tenths of a second of the four-time champion's benchmark in the final minutes.
2012 champion Rob Huff meanwhile had to abandon his own late flyer - which included an overall best in the first sector and a personal best in the middle - due to yellow flags. He ended the session in 13th.
Coronel's late effort demoted Muller's stable-mate Tom Chilton to third, and the Tuenti Chevrolet of Pepe Oriola to fourth.
James Thompson meanwhile put Lada fifth, just over six tenths of a second down on Muller.
Honda factory pair Gabriele Tarquini and Tiago Monteiro locked out seventh and eighth, sandwiched by the Bamboo Chevrolets of Alex MacDowall and James Nash respectively.
Rickard Rydell, making his WTCC return in a one-off appearance for Nika, ended the session in 11th.
Newly crowned Scandinavian Touring Car champion Thed Bjork, also making a one-off appearance at Shanghai with the Polestar Volvo squad, was six tenths of a second down the road in 15th.
Pos Driver Team/Car Time Gap 1. Yvan Muller RML Chevrolet 1m55.643s 2. Tom Coronel ROAL BMW 1m55.836s +0.193s 3. Tom Chilton RML Chevrolet 1m56.051s +0.408s 4. Pepe Oriola Tuenti Chevrolet 1m56.156s +0.513s 5. James Thompson Lada 1m56.269s +0.626s 6. Alex MacDowall Bamboo Chevrolet 1m56.476s +0.833s 7. Gabriele Tarquini Honda 1m56.481s +0.838s 8. Tiago Monteiro Honda 1m56.538s +0.895s 9. James Nash Bamboo Chevrolet 1m56.592s +0.949s 10. Darryl O'Young ROAL BMW 1m57.016s +1.373s 11. Rickard Rydell Nika Chevrolet 1m57.091s +1.448s 12. Marc Basseng Munnich SEAT 1m57.219s +1.576s 13. Rob Huff Munnich SEAT 1m57.327s +1.684s 14. Freddy Barth Wiechers BMW 1m57.503s +1.860s 15. Thed Bjork Polestar Volvo 1m57.738s +2.095s 16. Stefano D'Aste PB BMW 1m57.844s +2.201s 17. Tom Boardman Special Tuning SEAT 1m58.187s +2.544s 18. Norbert Michelisz Zengo Honda 1m58.603s +2.960s 19. Fernando Monje Campos SEAT 1m58.701s +3.058s 20. Charles Ng Engstler BMW 1m58.785s +3.142s 21. Franz Engstler Engstler BMW 1m58.891s +3.248s 22. Hugo Valente Campos SEAT 1m59.460s +3.817s 23. Mikhail Kozlovskiy Lada 1m59.572s +3.929s 24. Rene Munnich Munnich SEAT 2m00.184s +4.541s 25. Filipe de Souza China Dragon Chevrolet 2m02.122s +6.479s 26. Kin Veng Ng China Dragon Chevrolet 2m03.334s +7.691s 27. Jeronimo Badaraco Son Veng Chevrolet 2m03.570s +7.927s 28. Yukinori Taniguchi Wiechers BMW 2m03.680s +8.037s 29. Ka Lok Mak RPM BMW 2m04.569s +8.926s 30. Henry Ho Engstler BMW 2m05.374s +9.731s 31. Mehdi Bennani Proteam BMW -