In early 2016, Piastri landed his first major sponsorship, HP Tuners (founded and owned by his father), which helped fund his racing career. This was displayed when on his racing suit and car during the GP3 Series, F3 and F2 season. Later in 2016, Piastri made his single-seater debut in selected rounds of the Formula 4 UAE Championship with Dragon F4, claiming two podiums to take sixth in the championship.[7]