Favorite character and kart or bike

[Chrisbuckeye]

My combo is my Mii on the Dolphin Dasher.

[SuperMario17]

Update....Again!:
Funky Kong/Waluigi+Flame Runner
Daisy/Peach/Yoshi/SS393(mii)+Mach Bike
Dry Bones/Baby Mario+Bullet Bike

[-Alex-]

Bikes
Baby Luigi & Bullet Bike
Daisy & Mach Bike
Funky & Flame Runner

Karts
Koopa & Mini Beast
Mario & Wild Wing
Funky & Flame Flyer

[SuperMario17]

I'll edit this post from now on if it changes:
Funky+Flame Runner
Rosalina+Flame Runner
Bowser+Flame Runner
Waluigi+Flame Runner
Daisy+Mach Bike
Peach+ Mach Bike
Yoshi+Mach Bike
Bowser JR.+Mach Bike
Diddy+Mach Bike
SS393(Mii)+Mach Bike
Daisy+Dolphin Dasher
Peach+Dolphin Dasher
Luigi+Dolphin Dasher
Diddy+Dolphin Dasher
Yoshi+Dolphin Dasher
SS393(Mii)+Dolphin Dasher

[Woods]

Wario -> Flame Flyer

[ninjakirby07]

Mii,or Luigi, w/ i dont care which

[martheus37]

Daisy in the mach bike. Only because I break a 9200+ with her.

[DJ2]

Racing

Koopa Troopa or Dry Bones

Bullet Bike
Mini Beast
Magikruiser

Battling

Koopa Troopa or Toadette

Standard Bike

Hacking

Dry Bones or Toadette

Quacker
Cheep Charger
Bit Bike

[Diarago]

Bowser Jr. on the Mach Bike. Badass.

[Pokemonrock]

The two I usually use are Toad+Bullet Bike or Toad+Quacker.