The stars were lucky enough to get coveted grid tickets to the sun-soaked event at Silverstone on 30 June.
Both Amanda and Geri opted for summer dresses, with Amanda choosing a floral print and Geri going for an all-white ensemble.
Other stars in attendance included Carol Vorderman, Harry Potter star Rupert Grint and Radio 2's Chris Evans.
While the home crowds were no doubt cheering on British drivers Lewis Hamilton and Jenson Button for the win, it was Nico Rosberg who took the prize. Lewis suffered a tyre blowout that dramatically affected his race, although he managed to finish in fourth, while Jenson finished in 13th place.
From TOWIE to Made In Chelsea, top stories of June in pictures!
Copyright: Twitter Kim Kardashian