Miami heat could spell trouble for Red Bull, says Marko

The Miami Grand Prix is about to turn up the heat, and Red Bull’s Helmut Marko is already sweating over the forecast.

With Florida’s high daytime temperatures set to dominate this weekend’s Formula 1 showdown, Marko has warned that the warm environment could expose a key weakness in the RB21 – and potentially swing the performance advantage once again toward McLaren.

Last month’s Saudi Arabian Grand Prix offered a glimpse of how sensitive Red Bull’s package is to extreme heat.

In final practice at Jeddah, run under the intense sun, Max Verstappen trailed the leading McLaren drivers by eight-tenths of a second.

But when qualifying commenced under cooler night-time conditions, the reigning World Champion was able to claw back the deficit and take pole position from Oscar Piastri.

Marko, writing in his Speedweek column, pointed to that weekend as a warning sign for what may unfold in Miami, where hot daytime running will be the norm throughout the event.

“What do the findings from the first five races mean for the upcoming race in Miami?” Marko wrote.

“Once again, we’re talking about a completely different track, but above all we’re expecting higher temperatures.

“On paper, that’s not an advantage for us. In Jeddah, we were eight-tenths behind McLaren in the third practice session, in significantly warmer conditions than later in qualifying.

“We and the other opponents expected McLaren to drive away from everyone. But that didn’t happen. In Miami, we still expect the conditions to be more in McLaren’s favour.”

Red Bull Seeking Broader Operating Window

The concern centers around how narrow the RB21’s operating window appears to be in hot conditions – a vulnerability that could become more pronounced as the calendar moves into the European summer stretch.

McLaren’s MCL39, by contrast, seems to thrive on an overheated tarmac, putting added pressure on Red Bull to find solutions before heat becomes a recurring theme.

“Our task at the moment is to develop a broader working window for our race car; and also to reduce certain weaknesses of the car before the races in Europe and thus improve the basic speed of the car,” Marko concluded.

With McLaren poised to capitalize on the heat, Verstappen and teammate Yuki Tsunoda will need every ounce of skill – and a bit of setup magic – to defy the odds.

In the pressure cooker of Miami, Red Bull’s resilience will be put to the ultimate test.

Read also: Marko reveals how track and setup elevated Red Bull in Jeddah

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