The Mercedes-AMG F1 W15 E Performance, commonly known as the Mercedes W15, is a Formula One racing car designed and built by the Mercedes-AMG Petronas F1 Team to compete in the 2024 Formula One World Championship. This was the first Mercedes car fully designed under British designer and engineer James Allison since his return as technical director in 2023. The W15 was raced by returning drivers George Russell, and seven-time World Drivers' Champion Lewis Hamilton, the latter in his final season with the team. Andrea Kimi Antonelli served as a test driver.