-
When Mater, Finn McMissile and Holley Shiftwell were in France, the restaurant «Gusteau» could be noticed (a reference to another Pixar cartoon — «Ratatouille»). Only Gusteau himself was in the car prototype (he looks very much like Mater).
-
Among Professor Z's henchmen, a group of ZAZ 968 cars can be seen, or more precisely its export variant, the Jalta 968.
-
John Lasseter came up with the story for the sequel back in 2006, when he was in Europe promoting the first animated film.
-
At the race in Radiator Springs, among the spectators, you can spot a Planet Pizza car (a reference to "Toy Story"). This car appears in all films produced by Pixar.
-
All car brands correspond to the countries in which they are produced. For example, in Italy there are a lot of cars of the brands "Ferrari" and "Fiat", in Japan "Mazda" and "Subaru", and in the UK "Land Rover" and "Bentley".