Andrew Jordan topped the second British Touring Car free practice session on the Brands Hatch GP circuit.
The Eurotech Honda driver was quickest on the drying track heading into the final few minutes before a whole series of improvements shuffled the order.
The session had been red flagged to recover Tony Hughes's Speedworks Toyota Avensis and was restarted for the final 10 minutes.
Tom Onslow-Cole's WSR BMW pushed Jordan off of top spot, but Jordan responded to post a 1m31.765s, leaving his NGTC Civic over 0.6 seconds clear of the field.
Rob Collard also improved late on to make it a two-three for WSR, while Jason Plato's works MG was fourth, setting his best at the flag, a second off Jordan.
Eurotech's Jeff Smith, who at one stage was second to Jordan, ended up fifth, from works Honda drivers and title challengers Matt Neal and Gordon Shedden.
BTCC newcomer Aaron Williamson was 18th in Tony Gilham's S2000 Honda Civic.
Pos Driver Team/Car Time Gap 1. Andrew Jordan Eurotech Honda 1m31.765s 2. Tom Onslow-Cole WSR BMW 1m32.417s + 0.652s 3. Rob Collard WSR BMW 1m32.670s + 0.905s 4. Jason Plato MG 1m32.773s + 1.008s 5. Jeff Smith Eurotech Honda 1m32.879s + 1.114s 6. Nick Foster WSR BMW 1m32.919s + 1.154s 7. Matt Neal Honda 1m33.018s + 1.253s 8. Gordon Shedden Honda 1m33.039s + 1.274s 9. Mat Jackson Motorbase Ford 1m33.421s + 1.656s 10. Aron Smith Motorbase Ford 1m33.523s + 1.758s 11. Rob Austin Austin Audi 1m33.672s + 1.907s 12. Adam Morgan Speedworks Toyota 1m33.839s + 2.074s 13. Lea Wood Wood Vauxhall 1m33.851s + 2.086s 14. Dave Newsham ES Vauxhall 1m33.929s + 2.164s 15. Ollie Jackson AmD Volkswagen 1m34.525s + 2.760s 16. Will Bratt Austin Audi 1m34.660s + 2.895s 17. Frank Wrathall Dynojet Toyota 1m34.789s + 3.024s 18. Aaron Williamson Gilham Honda 1m34.854s + 3.089s 19. Andy Neate MG 1m34.923s + 3.158s 20. Chris James ES Vauxhall 1m35.193s + 3.428s 21. Liam Griffin Motorbase Ford 1m35.760s + 3.995s 22. Daniel Welch Welch Proton 1m36.272s + 4.507s 23. Tony Hughes Speedworks Toyota 1m39.794s + 8.029s 24. Tony Gilham Thorney Vauxhall 2m00.441s + 28.676s