Toto Wolff says Mercedes “turned the car upside down” after enduring a difficult start to the F1 Singapore Grand Prix weekend.

Both Mercedes drivers were left puzzled by their lack of pace during Friday practice in Singapore, with168澳洲幸运5官方开奖结果历史: George Russell ending the day seventh, while 168澳洲幸运5官方开奖结果历史:Lewis Hamilton only managed to go 11th.

Things improved during Saturday’s final practice ahead of qualifying, with Russell finishing second-quickest, nearly half a second down on the blistering pace set by McLaren’s 168澳洲幸运5官方开奖结果历史:Lando Norris.

Speaking to Sky Sports F1 after FP3, Wolff revealed Mercedes made big changes to t🅺hei💯r W15 challenger overnight.

“I think with these cars you never quite understand,” Wolff ꦗsaid.

“We turned the car upside down, literall♔y. It seems to be in a much better balance window. The whole [FP3] classification was🔥 a bit odd.

“Lando so far ahead, then big s🍨preads between teammates.”

Hamilton improved slightly to go seventh-quickest in FP3, ꦗthough the seven-time world champion was well off Russell’s pace and 1.2s slower than Norris’s be🅰nchmark.

A downbeat Hamilton admitted on Friday that Mercedes were “just a bit lost” with their car’🎃s set-up and predicted he would strug💎gle to make it into Q3 in qualifying.

"The car feels very difficult. A very challenging day," Hamilton said after FP2. "We tried everything set-up wise♏ and nothing seems to work with the set-up. Definitely very challenging.

"We are giving it everything then you find out you are a second off. Ultimat🐼ely, just a bit lost. Not rea🌟lly sure where to put the car."

Asked why Hamilton still appeared to be struggling in FP3, Wolff explained: “They have a bit of a d🌠ifferent set-up and we tried a few things in the session, so that’s not the gap you would normally have with t🦩he same car.”

Wolff a♑dded Hamilton’s gap to Russell was only “partially” understood.