Racing brake setup

To celebrate the release of Forza Motorsport 4, the world’s most advanced racing game, a crack team of pro race mechanics will build a Tornado replica of Ford’s awesome GT40 over the course of six hectic days in London’s Westfield shopping centre.

But this isn’t just any old car build in a shopping centre – daily votes on this website will decide which components they use and therefore how the finished machine both looks and performs.

There will be five daily votes, starting on Sunday 9 October and ending at midnight on Thursday 13 October, so the car can be finished the following day.

To get involved, check the bottom of the page for details on the parts and their respective pros and cons, then hit VOTE.

Voting will not only let you help define this supercar: by doing so you’ll be automatically be entered into a prize draw to win the incredible road- and track-ready result – that’s right, you could win yourself a unique Forza Motosport 4 GT40 replica with simply a few clicks of your mouse.

This is your chance to witness the birth of a supercar first-hand, so head down to Westfield if you can. But if you can’t, don’t worry: we’ll be following every step of the build here via live video feeds, a nightly video highlights package, plus regular updates to @Forza4Westfield on Twitter.