A follow up from the Mr Bean series. In an episode called “Missing Teddy” Mr Bean forces a Reliant Regal Supervan to drive into the back of a removal van. Later, Mr Bean then goes to the police station to put up a Missing Teddy poster; One of the other 'missing' posters in the background features the Reliant Regal.
My thanks to Kerry Croxton for sending in this picture.
Cars 2
In the 2011 animated film Cars 2 by Pixar two of the main characters are 3-wheelers. The first is a 3-wheeler called “Tomber” which is apparently a little French car (Tomber meaning to fall) though appears to be styled on a Reliant Regal saloon with Citroën DS headlights
Another 3-wheeler also appears in the film called “Zen Master” which is stated to be modeled on a Piaggio Ape..
Everything’s Rosie
In the animated series “Everything’s Rosie” one of the main characters called Will drives a 3-wheeler that he calls a “Go-Speeder”.
Koala Brothers
In this Australian stop-motion series, one of the characters called Sammy (who is an Ecidna) drives a 3-wheeled delivery truck.
Never Say Pink Furry Die
This 1992 Aardman Studios animation about a women who wakes up with a hang over after her hen night features what looks to be a Reliant van.