Momentum has swung between Red Bull and Mercedes in the battle for the 2021 F1 World Championship, with Helmut Marko unsure which team will have the advantage in Turkey.
Lewis Hamilton currently holds a slim two-point advantage over Max Verstappen in the standings thanks to his recent win in Russia. While expected by many given that Mercedes have won every race held at the Sochi Autodrom, it was anything but straightforward.
Up next is a trip to Istanbul Park, which made its return to the F1 calendar last season. As the race was held in rainy conditions, Marko isn't sure if Red Bull or Mercedes will have the advantage this weekend.
"It depends on each circuit, which team has the best chassis. It will be difficult to estimate who will have the upper hand in Turkey," Red Bull advisor Marko told Auto Motor und Sport, looking ahead to the final seven races of the season.
"After Turkey, there are three tracks that suit us: Austin, Mexico and Brazil."
Red Bull Team Principal Christian Horner echoed those sentiments, stating that his team have always been strong in Brazil and Mexico.
However, with F1 making its first trip to Qatar and Saudi Arabia later in the season, Horner admits it's an unknown as to which championship contender will lead the way at those races.
Lewis Hamilton claimed his 100th Grand Prix win to move into the championship lead, but it's Red Bull and Max Verstappen who will be happiest after the Russian Grand Prix.