Mattia Binotto said he knows there can be no repeat of a dismal 2020 season for Ferrari this year when the team launched their new car on Wednesday.
The Scuderia finished down in sixth in the constructor standings last year with only 131 points.
They failed to win a race and secured only three podiums in their worst season for four decades, as Mercedes continued their dominance of Formula One.
Carlos Sainz has replaced Sebastian Vettel at the famous Italian team, partnering Monegasque driver Charles Leclerc.
The duo will be behind the wheel of a new revamped SF21, which team principal Binotto hopes to be bring a turnaround in fortunes in a season that starts in Bahrain on March 28.
Binotto said: "Last year was a big disappointment. We know we cannot repeat such a bad result. We know we need to do better in 2021."
The #SF21 in all its beauty #essereFerrari pic.twitter.com/HNQLM87cO3
— Scuderia Ferrari (@ScuderiaFerrari) March 10, 2021
He added: "This car was born out of last year's car, due to the new regulations. So, it was partially frozen, but we tried to improve it in all of its areas wherever possible.
"The aerodynamics were revised, its livery has also changed.
"The posterior is a burgundy colour, similar to the very first Ferrari racing car, the 125S. It's the same colour we used last year at Mugello to celebrate our 1,000th Grand Prix.
"Visually, we've drawn on our past but we're also looking forward to the future, which will always be defined by our Ferrari red."