Sam Tordoff moved to the top of the times in the second British Touring Car Championship free practice session at Donington Park, as MG showed their cards ahead of qualifying.
The Leeds driver denied Aron Smith a sweep of the two practice sessions with an effort of 1m09.684s, the MG KX Clubcard Fuel Save BTCC Team man beating his BMR Racing rival by just 0.150s.
Both Tordoff and his team-mate Jason Plato came out of the blocks rapidly in the second 40-minute session of the day, Tordoff asserting himself during the second half of proceedings to lower the morning times by almost half a second.
Smith and Tordoff traded fastest laps at the peak of the times for the final 10 minutes, Tordoff eventually coming out on top ahead of the Irishman, while their team-mates Alain Menu (BMR) and Plato (MG) completed the top four.
Best of the rest proved to be Adam Morgan in the WIX Racing Mercedes A-Class, just over half a second off the pace of Tordoff, while Gordon Shedden took the honours of being quickest Honda in sixth place ahead of Andrew Jordan.
The third MG of Marc Hynes continued to run strongly in the hands of the 1999 British Formula 3 champion, Hynes concluding in eighth spot ahead of double champion Fabrizio Giovanardi who crept up the times for Motorbase Performance in the first of the Ford Focuses.
Martin Depper completed the top 10 in the second Pirtek Racing Honda Civic, Matt Neal and Colin Turkington meanwhile enjoying relatively quiet sessions prior to finishing in 12th and 16th positions respectively for Honda and BMW.
Rob Austin and Hunter Abbott were shown black flags during the session as track limits were clamped down upon more aggressively, James Cole another victim. Dan Welch made it out on track in second practice, while his Proton team-mate had his session curtailed by front-left suspension damage.
Qualifying gets underway at 15:40, and you can follow all the action from Donington this weekend with The Checkered Flag, and via Twitter at @tcfBTCC.