McLaren has fired up its new Mercedes Formula One engine for the first time.
McLaren and Mercedes have rekindled their former partnership for 2021 and beyond. McLaren ran Renault engines from 2018 until last year.
New signing Daniel Ricciardo will join Lando Norris in spearheading McLaren's new era as it looks to continue the upwards trajectory of recent seasons.
On Wednesday, the British team fired up the engine for the first time, something which is a key part of the build of a new car.
The #MCL35M roars into life.