Williams F1 is offering members of the public a one-day opportunity to tour its facilities on 21 October, with half the proceeds going to charity.

Part of National Motorsports Week, guests will be given an exclusive viewing of the Williams Grand Prix Collection, the largest of its kind in the world, as well as a detailed tour of the factory including the machine shop, race bays and other engineering facilities.

Other highlights of the tour include a video link welcome from Sir Frank Williams, a Q&A session with Mike Coughlan, Technical Director, and a virtual tour from the Williams F1 team conference centre. All guests will also be given the opportunity to enter a raffle, with a chance of winning a full hospitality package for two people at a Williams F1 conference centre race day.

An F1 team is an amazing operation that has more in common with NASA than your corner garage. In fact, it has more in common with a hospital operating theatre, as the garages are kept spotlessly clean.

Sir Frank Williams said: ''The MIA does a fantastic job and when we were approached to host a fan day we were delighted to accept. The Williams F1 ethos has always been to try and bring the world of Formula One closer to fans and this is the perfect opportunity to give them a look behind the scenes and learn about the effort that goes into putting our cars on the track. I am sure that the lucky 200 fans that will join us in October will have a fun and informative day.''

Tickets cost £70 per person and half of the proceeds from sales will be given to the team's supported charities, which include the Spinal Injuries Association, Macmillan Cancer Support and the Motorsport Foundation.