Oscar Piastri finished fifth in the Mexico Grand Prix, but lost the F1 championship lead to team-mate Lando Norris

McLaren's Oscar Piastri surrendered the Formula One championship lead to teammate Lando Norris after the Mexico City Grand Prix on Sunday but the Australian sounded an upbeat note about his progress and said he had taken steps to unlock his car's pace.

And so, yet another dramatic twist in an increasingly gripping title fight has seen the once-trailing Lando Norris rise to the occasion brilliantly in Mexico to unseat his formerly unstoppable McLaren teammate Oscar Piastri from the lead in the points table that he has held since the Saudi Arabian Grand Prix in April.

Oscar Piastri has provided more insight into his poor run of form in recent weeks, after finishing in fifth place at the Mexican Grand Prix.

Alice in Wonderland was baffled. The dear thing. She quite forgot how to speak good English and reckoned everything was getting curioser and curioser … a couple of nonsensical words that sprang to mind when Oscar Piastri was trying to explain why he could no longer get within cooee of a Formula One podium or McLaren teammate Lando Norris.

After losing the lead of the Formula 1 championship, Oscar Piastri said he has not been able to adapt to the way McLaren's car has changed over the past few races.

Oscar Piastri revealed he has needed to “drive very differently” in the past few races as he licks his wounds after seeing his championship lead disappear at the Mexican Grand Prix.

The conspiracy theorists have gone into overdrive after Oscar Piastri claimed "something weird happened" to his McLaren during the Mexico Grand Prix. But the more popular theory is he simply doesn't perform as well at the tracks that feature in the second half of the F1 season,