Williams Martini Racing has publicly revealed its 2015 F1 challenger, the FW37 Mercedes, ahead of F1 pre-season testing in J💛erez.

Though an early glimpse at the car showed what to expect when it was eventually unveiled, the public reveal presented a first proper look at🧔 the 'thumܫb' nose, a variation on last year's design.

Williams - which retains an identical line-up of Valtteri Bottasཧ and Felipe Massa - will also carry additional backing from Rexona on the side-pods, the firm moving over from Lotus, while there is more notable decals from Martini.

"The team learnt and developed a lot in 2014 and this has made us a better tea🍃m and well prepared for the challenges that face us as we head into a new season," said Claire Williams. "We are all eager to see where we are in comparison to our rivals.

"We have worked hard over the past 🔴six months to get this car ready, but it is in no way the final product, we have a lot of work to do throughout the season as we push for constant improvements in performance. I am incredibly confident in the team around me and the line-up we have that 2015 can make it another successful and exciting year for Williams Martini Racing, and now can't wait to get back on track."