A delivery car named Cruise became a racer. No one thought he would win. He ended up winning against his arch-enemy, Wrangler. There are also lots of sequels of this mockbuster, such as "The Little Cars 3: Fast And Curious (2007)". This one even ripped off the name of "Fast And Furious (2001)".
This is hailed as one of the worst mockbusters of all time by everyone who's seen it.