'Nothing I could do': Oscar Piastri's frustration exposed in podium hot mic moment

A hot mic moment caught Oscar Piastri in the debrief room teeing off at the overtaking opportunities in the new Formula 1 cars at the Miami Grand Prix.

The mood in the cooldown room offered a candid look into Piastri's frustrations, as the McLaren driver gave a dismal review of his MCL40's abilities, after finishing third, behind his teammate Lando Norris and young gun Kimi Antonelli, who won the race.

"See, watch this. I overtake him (George Russell), sweet. Nothing I could do," Piastri said shaking his head in the room.

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"Man, trying to defend in these cars...you look and they're half a second behind but catching you so fast."

Listening in, commentator David Croft said on Kayo Sports said that Piastri's comments in the room was "a fascinating debrief".

It's isn't the first time Piastri has taken a subtle dig at the new regulations and the Australian expanded on his frustrations during the post-race press conference.

"Reducing the harvest in qualifying has helped a bit. It's not fixed all the problems but it's helping," Piastri said.

"The races are exactly the same. Today was my first proper experience of overtaking people and having to defend… it's pretty crazy, to be honest."

He said a driver was "one second behind me and managed to overtake me by the end of that straight".

"It's a bit random, all the closing speeds are huge," Piastri said further.

"But I think the second half of the race felt much more comfortable.

"I think the pace was just a lot better as well and was able to chase down George and obviously Charles (Leclerc) at the end as well. So very happy about that.

"Obviously, for a long part of that race, it definitely wasn't looking like a podium, so to end up in third is a really good result."

Piastri specifically referenced his on-track battle with Russell, admitting that the nature of the cars essentially forces a driver's hand into aggressive manoeuvres.

"Trying to anticipate that as the defending driver is incredibly tough to do."

"I wasn't that pleased with one of the moves George did but I found myself almost doing the same move five laps later, just because the closing speed is enormous.

"From that side of things, not much has changed. Some changes in the future are still needed for sure."

Piastri now sits sixth in the world championship with 43 points to his name, 57 points adrift of leader Antonelli, who is on 100 points.

Antonelli went toe-to-toe with the reigning world champion to take a pole-to-flag victory in Miami. In doing so, he becomes the first driver in the history of Formula 1 to convert his first three career pole positions into his first three race victories.

The threat of rain loomed over Miami all weekend, forcing race officials to move the start time three hours earlier to pre-empt severe rainstorms forecast to batter the Florida coast.

While drivers reported a few scattered drops on their visors in the early stages, the schedule change proved brilliant, keeping the worst of the downpour at bay until well after the chequered flag.

It was mayhem in the final moments. Piastri launched a daring late charge and dove past Ferrari's Charles Leclerc at the final chicane on lap 56 to snatch the last spot on the podium alongside his teammate Norris.

Flustered by the pass, Leclerc made a bizarre mistake, spinning and clipping the wall.

The error allowed Mercedes' Russell and Max Verstappen to slip past as well, capping off a dismal final few moments for the Ferrari driver.

Leclerc was handed a 20-second penalty after the chequered flag for leaving the track multiple times.

"It's not been the most straightforward of weekends, I think qualifying for both of us was a bit messy. Had to make a few overtakes, obviously the end of the race was a pretty late charge - very tricky around here with the conditions," said Piastri post-race.

"A step forward in performance again.

"I think this weekend we showed that if we get track position, we can hang on to things well."

Piastri was dealt a hard blow in the early stages of the race, after a slow pit stop dropped the Australian down the order.

However, he showed phenomenal pace in the closing stages, notably passing four-time world champion Verstappen on lap 48 to put himself in the box seat for the podium fight.

The Miami circuit claimed several victims early on.

The safety car was deployed on lap six after a dramatic collision saw Alpine's Pierre Gasly flip over Liam Lawson. Simultaneously, Red Bull's Isack Hadjar crashed into the barriers at the Hard Rock Stadium's fast chicane.

It was an equally frustrating day for his Red Bull teammate, Verstappen. After starting on the front row, Verstappen was spun on the opening lap, undoing all of his qualifying efforts.

He spent the latter half of the race slipping backward and losing ground to Leclerc and Piastri, before being handed a five-second time penalty for crossing the white line on the pit lane exit.

Despite the chaos unfolding in his rear-view mirror, Antonelli remained entirely unfazed out front and won the race by three seconds ahead of Norris.

"This is just the beginning, the road is still long," said race-winner Antonelli.

"I'm gonna enjoy this one and then get back to work as Canada is in two weeks time."

Formula 1 resumes back on track in Montreal, Canada, with the next race day set for May 25.