I would like it if there's a Christmas special of both Rio and Cars, because I like Rio and Cars. I would want a sequel to both Rio and Cars released in the same year.
Idea for Cars Christmas special
There is a Christmas World Grand Prix taking place in countries around the world, including Rio de Janeiro, London (which I want Cars 3 to have travelling to Rio and London and other places), other random places, Antarctica and the North Pole. All of the World Grand Prix racers take part in it. Meanwhile, Santa has been shot down by the Lemons, who escaped from prison. Mater, Lightning McQueen, Finn McMissile, Holley Shiftwell and others must try to save Christmas.