Goku Racing 46 SD

Too Fast
These characters are too fast.
 * Cartoon Network Goku
 * Brawl Mario
 * Brawl Bowser
 * Brawl Donkey Kong
 * Brawl Captain Falcon
 * Brawl Charizard
 * Homer Simpson

Supersonic
These characters are faster than Captain Falcon.
 * Goku
 * Sonic The Hedgehog
 * Shadow the Hedgehog
 * Wurley

Fast
These characters are kind of fast.
 * Captain Falcon
 * Toad
 * Toadette
 * The Annoying Orange
 * Salad Fingers
 * Barack Obama (after losing weight)
 * Charizard
 * Pikachu
 * Jess
 * Monkey
 * Bob-omb
 * Larry
 * Roy
 * Lemmy
 * Wendy O.
 * Morton Jr.
 * Ludwig
 * Bowser. Jr
 * Big Bad Bill
 * Dr Rabbit
 * Ekans
 * Slowpoke
 * Nim-Nom
 * Snivy
 * Mudkip

Medium
These characters go at a normal pace.
 * Crash Bandicoot
 * Coco Bandicoot
 * Crunch Bandicoot
 * Jessie
 * James
 * Meowth
 * Bowser
 * Donkey Kong
 * Josh
 * Poppy
 * Neo Cortex
 * Squishy
 * Roll Caskett
 * Wishy
 * Mario
 * Luigi
 * Waluigi
 * Ash Ketchum
 * Micheal Jackson
 * George W. Bush
 * Flumpy

Slow
These characters go slow.
 * Baby Mario
 * Baby Luigi
 * Baby Peach
 * Baby Daisy
 * Baby Yoshi
 * Baby Wario
 * Baby DK
 * Baby Waluigi
 * Baby Toad
 * Wario
 * A random snapping turtle who still has it's legs
 * Squirtle
 * Blastoise
 * Cereal Bowl
 * Wiggler

Still
These characters don't even move. If you pick them, you will lose.
 * Chubby Kid
 * Snorlax
 * Evil Guy
 * Eviler Guy
 * Fat Guy
 * Sumo Guy
 * Even eviler Guy
 * Even even eviler GUY
 * Evilest of all GUY
 * A Hippotamus
 * Numa Numa Guy

Size
The characters/karts fall into many catergories:

Feather

 * Wurley

Small

 * Baby Mario
 * Baby Luigi
 * Baby Peach
 * Baby Daisy
 * Baby Yoshi
 * Baby Wario
 * Baby DK
 * Baby Waluigi
 * Baby Toad
 * Toad
 * Toadette
 * The Annoying Orange
 * Salad Fingers
 * Barack Obama (after losing weight)
 * Pikachu
 * Jess
 * Monkey
 * Bob-omb
 * Larry
 * Roy
 * Lemmy
 * Wendy O.
 * Morton Jr.
 * Ludwig
 * Bowser. Jr
 * Big Bad Bill
 * Dr Rabbit
 * Ekans
 * Slowpoke
 * Nim-Nom
 * Snivy
 * Mudkip
 * Roll Caskett

Medium

 * Goku
 * Mario
 * Luigi
 * Waluigi
 * Jessie
 * James
 * Meowth
 * Josh
 * Poppy
 * Squishy
 * Crash Bandicoot
 * Coco Bandicoot
 * Crunch Bandicoot
 * Neo Cortex
 * Wishy
 * Ash Ketchum
 * Squirtle
 * Sonic The Hedgehog
 * Tails
 * Knuckles
 * Shadow the Hedgehog
 * Micheal Jackson
 * George W. Bush
 * Flumpy

Large

 * Bowser
 * Donkey Kong
 * Charizard
 * Captain Falcon
 * A random snapping turtle who still has it's legs
 * Blastoise
 * Cereal Bowl
 * Wiggler
 * Cartoon Network Goku
 * Brawl Mario
 * Brawl Bowser
 * Brawl Donkey Kong
 * Brawl Captain Falcon
 * Brawl Charizard
 * Homer Simpson

Too Large

 * Wario
 * Chubby Kid
 * Snorlax
 * Evil Guy
 * Eviler Guy
 * Fat Guy
 * Sumo Guy
 * Even eviler Guy
 * Even even eviler GUY
 * Evilest of all GUY
 * A Hippotamus
 * Numa Numa Guy