The Brackley-based outfit revealed images of the revamped car this morning, as drivers Valtteri Bottas and Lewis Hamilton began a shakedown at Silverstone.
Having teased a camo livery throughout the week, the defending champions unveiled a new with noticeable distinctions such as its Petronas Green rims.
Team Boss Toto Wolff said that the new aero regulations meant it has been difficult to ensure the Mercedes-AMG F1 W10 EQ Power+ stays on top.
“The 2019 season will be a new challenge for all of us,” he said. “The regulations have changed quite substantially. We have to start from scratch, we need to prove ourselves again – against our own expectations and against our competitors.
“We start the season with zero points, so we’re taking nothing for granted and there’s absolutely no feeling of entitlement to be at the front. In fact, with the regulation change for the new season, every team can have a shot at the title and we’re seeing all of them as a potential threat.”
He added: “We’re eager to hit the ground running in Barcelona, to benchmark ourselves against our own simulations and see if our predictions materialise on track.
“We will focus on ourselves, building up performance and hopefully be ready when the first really competitive session starts on Saturday in Melbourne.”
Although the W10 has been built to suit the 2019 aero regulations, the car has still retained the same wheelbase length as its predecessor.
Technical director James Allison said: “A close inspection will reveal that the execution of this concept has been further refined.
“Every item is pushed tighter, made more slender – each change permitting us to improve the aerodynamic performance beyond what would have been possible had we accepted the physical limitations of the 2018 design.”
Both Aston Martin Red Bull Racing Honda and newly named Racing Point F1 Team are scheduled to launch later today.