Mercedes and Williams formally unveil 2015 cars

The Mercedes W06 Hybrid and Williams FW37 have been formally launched in the Jerez pit lane.

© Mercedes AMG Petronas

The two cars were unveiled in front of gathered media and photographers just prior to the start of the first winter testing session. 

Mercedes released images and video footage of the W06 on Thursday, after the car's shakedown test and filming day at Silverstone.

REVEALED! @LewisHamilton & @nico_rosberg unleash the #SechsyBeast! Now, let's get #BackToWork! #F1 pic.twitter.com/81S6NiSm8u
— MERCEDES AMG F1 (@MercedesAMGF1) February 1, 2015

Lewis Hamilton and Nico Rosberg uncovered their 2015 machine at the Jerez circuit. A few minutes later and further down the pit lane, the Williams FW37 was revealed by Felipe Massa and Valtteri Bottas.

The reveal! #FW37 pic.twitter.com/iP0RMbbppa
— WILLIAMS RACING (@WilliamsRacing) February 1, 2015

Rendered images of the car were previously released, with the Mercedes-powered machine appearing on the cover of the latest F1 Racing magazine issue.

Meanwhile Red Bull Racing released the first pictures of its new RB11, sporting a striking test livery, after the start of the morning session.

The RB11 in it's testing livery from a different view. #CamoBull #RB11 pic.twitter.com/nsuCCddtTN
— Red Bull Racing (@redbullracing) February 1, 2015

Here are more studio images of the Mercedes W06, Williams FW37 and Red Bull RB11:

© Mercedes AMG Petronas

© Mercedes AMG Petronas

© Williams Martini Racing

© Williams Martini Racing

© Red Bull Racing

© Red Bull Racing