F1 enters a new era this season with strikingly different machinery primed to grace the world's best race circuits.
Radically altered aerodynamics aim to allow for more exciting racing action with less turbulent air preventing cars from following each other, meaning drivers should be able to remain in close contact through corners.
There is also the factor of development, with different teams switching attention to the new cars at varying stages of the 2021 season, some even before last year's racing got underway.
GPFans is asking for your thoughts: Will the new regulations actually work?