The Grand Prix of the summer) is a Spanish prime-time television summer competition between small towns created by Francesco Boserman and produced by Europroducciones.

[3] With the same premise as French television show Intervilles, it features mixed teams representing small towns in Spain competing in a series of games –usually funny physical games played in outlandish costumes, though none-the-less technically difficult, but also general knowledge games where mayors and celebrity godparents are put to the test–, some of which involve live heifers (referred to as the vaquillas).

[a] Due to the animal welfare law coming into force in 2023, for season 15 the vaquillas were replaced by an anthropomorphic heifer portrayed by a person in a full-body costume who hindered a team at the request of the opposing team.

[5] It also had a version for Portugal, Todos Gostam do Verão (transl.

[6] On 31 December 2024, a controversy concerning the Grand Prix heifer occurred, when Spanish actress and comic Laura Yustres showed during La 1 emissions of New Year's Eve a picture of the cattle imitating the Sacred Heart.