Last year, the Spaniard outperformed his highly-rated teammate Charles Leclerc, finishing best of the rest behind only the Mercedes and Red Bull drivers.
Speaking at the car launch of the F1-75, Charles Leclerc said he was happy with how the team have worked on their new F1 car.
The new F1-75 retains the team's iconic red colours, but features black front and rear wings, harkening back to the 1990s.
While some followers' reactions indicate that they are definitely ready, the 2022 model will have to wait for a while.
For the final eight races of the 2021 season, Ferrari installed a new engine specification into their car, which helped Sainz to two podiums.
Red Bull and Mercedes were comfortably the top two teams in the 2021 season, but that could change in 2022.
Ferrari bounced back spectacularly last season after having its worst season since 1980 in 2021, finishing third and beating McLaren.
Although Horner expects the usual contenders to be in the mix in 2022, he admits that the pecking order is difficult to predict.
Sainz gave no hints about his new car during Ferrari's warm-up sessions at Fiorano this week, but he did offer a good tease.
With both Leclerc and Sainz putting some early mileage on their 2022 clocks, Thursday saw the return of one of Formula One's strongest driver lineups.