From the Pebble Beach Concours d‘Elegance to the Goodwood Revival and beyond, summer is truly classic car season. But with so many well-established shows taking place, how can newer events manage to attract the crème de la crème of classic cars and their owners?

The answer for the U.K.'s Concours of Elegance, which in its fifth year of existence is being held at Windsor Castle September 2-4, was to get Her Majesty the Queen involved.

"The people that own the world's most collectible cars are always looking for new experiences and new places to share their passion," explains event spokesperson Luke Madden.

And it doesn't get more special or unique than one of the Queen's official residences. "It is literally in her back garden and when she looks out of her window she can see the cars," explains Madden. Displaying cars at the Windsor Castle Quadrangle means that every detail needs to be signed off by the Royal Family -- the Queen has to give her permission for the event to take place. "This is the reason why the event attracts the world-class cars that it does," says Madden.

Each one of the 60 cars selected by committee for this year's concours has already won a concours event, such is the standard and, tellingly, 40 owners have had to be turned away -- the concours element of this year's show is oversubscribed.

"Our show is unique because all of the cars are such a high calibre," explains Madden. "So we don't give a best in show award. Instead we ask the owners to vote on which car and owners they like the most."

But these 60 cars, which will include a 1900 Daimler 6hp owned by the Queen herself and the unique Art Deco 1938 Hispano-Suiza Dubonnet Xenia, are simply the icing on the cake.

In all, over 1000 cars will be on display at this year's show. Every storied brand and their owners' clubs will be in attendance as will a collection of 1926 Formula One cars -- as well as being the year in which the Queen was born, 1926 is also the first year in which F1 racing was held in Britain.

The organizers will also be displaying what they believe are the best British cars from every decade since the Queen's birth while slightly more modern but equally rare automobiles will also be there in droves including the world's only factory-built Ferrari Testarossa Spider and a 2016 Touring Superleggera Disco Volante Spyder.