Aha! I found a gem! Just the Cars Toon (Cartoon, get it?) pun makes me smile a bit, but the content is what really makes me laugh.
It's a mash-up of different tales, a steady stream of stories about cars - all by Mater's word of mouth. These stories are all told when Lightning McQueen is around, he usually expresses his disbelief, Mater usually says something along the lines of
Shoot. You don't remember? You was there too! and suddenly Lightning is in the story - and the main focus of the story - IOW the one in trouble within the story. That doesn't really convince Lightning, but when a car rides up after the story and asks for an autograph, or offers a comment on an old memory, or when Mater switches on his anti-gravitational boosters and flies off... well you never know. :)
The stories are fresh and entertaining, with plenty of wordplay, comedy and not to forget - lots of action! Lots'a cars! There's El Materdor, there's an Impala 13 stuck on the moon, there's a few others I can't recall... then they run out of inspiration a bit and start going with Heavy Metal Mater and Private Eye Mater, Tokyo Mater and... a Donut shop where the cars all... do donuts, lmao. Even when they run out of inspiration for the titles, the tales are all but uninspiring.
In the final story Mater becomes king of drifters and the other car looses all modifications, which means he becomes stock. Which means... he becomes the laughing stock, get it? This movie's got it.
rated 5/5: friggin awesome