Williams and Gulf will be running a special 'fan livery' for three races towards the end of the season.
Gulf teased the special livery on their social media channels last week, giving fans the chance to vote for their favourite from four candidates.
The first round will pit a 'Bolder than Bold' design against a 'Contemporary' design, while fans will be able to vote in the next round for the other two liveries; 'Visionary' and 'Heritage' designs.
The best design will appear on both FW45 race cars, the race suits of Alex Albon and Logan Sargeant and across team social media platforms over the Singapore, Japan and Qatar weekends.
The winner will be announced on Wednesday 12 July and displayed on a show car at the Goodwood Festival of Speed.
"I’m excited to announce the livery vote as part of our partnership between Gulf and Williams Racing. The winning livery will showcase two iconic motorsport brands coming together," said Team Principal, James Vowles.
"Our fans have the opportunity to create motorsport history with their livery decision, bringing this partnership to life. I can’t wait to see the winning design and watch the Williams Racing fans cheering the team on.”
You can vote at the Williams website here. Check out the liveries below.