About Red Bull Racing RB21
The Red Bull Racing RB21 is a Formula One car which was designed and constructed by Red Bull Racing and competed exclusively in the 2025 Formula One World Championship. It was driven by defending World Champion Max Verstappen, who was joined by Liam Lawson and Yuki Tsunoda, the latter replacing Lawson from the Japanese Grand Prix. The RB21, which was powered by the Honda RBPTH003 power unit, is the last Red Bull Racing car to be powered by Honda RBPT-badged engines, with Honda returning in a fully fledged capacity for the forthcoming new power unit rules and switching to powering the rival Aston Martin team from 2026. From the 2026 season, Red Bull and its sister team Racing Bulls have utilised Red Bull Powertrains Ford engines. The RB21 was the first Red Bull Racing car since the RB2 to not be designed by former Chief Technical Officer Adrian Newey, and the first car to be designed by Technical Director Pierre Waché who is now overseeing all aspects of any future Red Bull challengers from design to production with the RB21 being the first car for which he oversaw both the design and production process. Two mid-season upgrades for the car have been introduced overall: first a package at Miami, and the second at Monza.
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