The new-for-2019 regulation changes see aerodynamics being expected to play a greater part in for better racing.
One major change is the wider and simple front wings in the cars.
The wings have been widened by 200mm to reduce turbulence.
The taller, wider and simpler rear wings will generate more down force and improve airflow.
A simplified front brake duct has come into effect.
Other key changes implemented for 2019
Other changes see drivers being required to wear biometric gloves. There will be two additional rear lights to increase visibility of cars. Drivers will also sport stronger helmets this season which should match the new FIA 8860-2018 standard. There is also an increased fuel allowance.
Mercedes dominated the show in 2018
There will be 21 races this season.
The 2019 F1 season starts off with the Australian GP on March 15-17.
The season will end with the Abu Dhabi GP on December 1.
Mercedes finished as toppers last year with 655 points.
Ferrari (571) and Red Bull (419) followed suit.
Lewis Hamilton clinched the title with 408 points ahead of Vettel (320).