Augusto Farfus set the quickest time of the World Touring Car test session at Zolder this afternoon
BMW's finished first and third as Farfus and team-mate Andy Priaulx sandwiched second-placed Yvan Muller's Chevrolet.
Darryl O'Young was a surprise fourth quickest as the top independent runner in his Bamboo Engineering Chevrolet Lacetti.
Tom Coronel was the fastest of the SEATs in fifth place, ahead of the Cruze's of Rob Huff and Alain Menu - both of whom completed fewer laps than the other front runners after spending most of the session with their cars being worked on in the pits.
The SEATs of Jordi Gene and Gabriele Tarquini were eighth and ninth, with home driver Vincent Radermecker completing the top 10 ahead of his one-off outing with Chevrolet this weekend.
The other addition to the grid since Monza is another Belgian, Pierre-Yves Corthals, who is driving the only petrol-powered SEAT on the grid - run in the independent class by Exagon Engineering.
Pos Driver Car Time Gap 1. Augusto Farfus BMW 1m40.096s 2. Yvan Muller Chevrolet 1m40.259s + 0.163s 3. Andy Priaulx BMW 1m40.311s + 0.215s 4. Darryl O'Young Chevrolet 1m40.507s + 0.411s 5. Tom Coronel SEAT 1m40.647s + 0.551s 6. Robert Huff Chevrolet 1m40.883s + 0.787s 7. Alain Menu Chevrolet 1m40.961s + 0.865s 8. Jordi Gene SEAT 1m41.123s + 1.027s 9. Gabriele Tarquini SEAT 1m41.123s + 1.027s 10. Vincent Radermecker Chevrolet 1m41.244s + 1.148s 11. Tiago Monteiro SEAT 1m41.268s + 1.172s 12. Kristian Poulsen BMW 1m41.545s + 1.449s 13. Stefano D'Aste BMW 1m41.742s + 1.646s 14. Franz Engstler BMW 1m41.844s + 1.748s 15. Mehdi Bennani BMW 1m41.937s + 1.841s 16. Fredy Barth SEAT 1m42.046s + 1.950s 17. Norbert Michelisz SEAT 1m42.178s + 2.082s 18. Michel Nykjaer SEAT 1m42.294s + 2.198s 19. Sergio Hernandez BMW 1m42.701s + 2.605s 20. Harry Vaulkhard Chevrolet 1m42.905s + 2.809s 21. Pierre-Yves Corthals SEAT Leon 1m43.279s + 3.183s 22. Andrei Romanov BMW 1m45.139s + 5.043s
Volvo gave the World Touring Car Championship a major boost when it announced it would enter the series, but its ambitions don't stop there. JACK COZENS examines its programme, the S60 and what its arrival means for the WTCC
The 2012 World Touring Car champion says he never had the money to race cars. Yet 2015 is his 11th season in the WTCC. He talks STUART CODLING through his journey from motorsport fan to paid professional - for little more than £100,000