Night of the Living Doo 2001    star_border 9
In a spoof of 1972's The New Scooby-Doo Movies, Scooby-Doo and the Mystery Inc. gang pick up a hitchiking Gary Coleman. Soon after, the Mystery Machine proceeds to break down (multiple times) leaving them stranded at a haunted castle owned by David Cross.

Scooby-Doo/Courage the Cowardly Dog Scare-A-Thon 2000
The Mystery Machine is stuck in Nowhere, leading the gang to seek help from Courage and his family.