Pottybig Race League-Diecast Racing

After 55 earth years hosting races, The Spore Valley Championship is finally broadcasting to the universe.
Organized by The Pottybig Race League, their races consist of 6 cars rather than the 4 car standard.
This method has proven more exciting and efficient in getting through the endless backlog of drivers.
Centuries ago in Spore Valley, a mysterious cluster of "cursed" mushrooms emerged. Appearing during disputes around the universe, the mushrooms possess an allure, mesmerizing all who encounter them.  The current Shroom Shaman put a sign on it in hopes that would stop it, but it seemed to only attract more to touch it.
Touching these mushrooms leads to an instant transport to the heart of 
Spore Valley Inter-DIMENSIONAL Raceway. Racers receive qualifying times,
and are grouped in 'World-Cup style' bracket. Winners not only claim cash
prizes valued in their own worlds currency, but more importantly ascend the 
ladder towards the ultimate goal: Spore Valley Champion.