Unlockable Karts:
Cheep Charger (small kart) -- Attain at least 1 Star Rank for all 50cc Retro Grand Prix Cups
Blue Falcon (small kart) -- Win Mirror Lightning Cup
Rally Romper (small kart) -- Unlock 1 Expert Staff Ghost Data in Time Trials
Turbo Blooper (medium kart) -- Win 50cc Leaf Cup
Royal Racer (medium kart) -- Win 150cc Leaf Cup
B-Dasher (medium kart) -- Unlock 24 Expert Staff Ghost data
Piranha Prowler (large kart) -- Win 50cc Special Cup
Dragonetti (large kart) -- Win 150cc Lightning Cup
Aero Glider (large kart) -- Win all 150cc Retro Grand Prix Cups with 1 star or better
Unlockable Bikes:
Quacker (small bike) -- Win 150cc Star Cup
Bubble Bike (small bike) -- Win Mirror Leaf Cup
Magikruiser (small bike) -- Play Time Trials on 8 different courses
Rapide (medium bike) -- Win 100cc Lightning Cup
Nitrocycle (medium bike) -- Attain at least 1 Star Rank for all 100cc Wii Grand Prix Cups
Dolphin Dasher (medium bike) -- Win Mirror Star Cup
Twinkle Star (large bike) -- Win 100cc Star Cup
Phantom (large bike) -- Win Mirror Special Cup
Torpedo (large bike) -- Unlock 12 Expert Staff Ghost Data in Time Trials
By Beating cups
King Boo, Bowser, Dry Bowser, Rosalina, and Funky Kong all use large karts on Mario Kart Wii.
When you hack the game.
Get gold trophy in grand prixs to unlock karts and characters.
Karts. It can have longer turbo boosts.
You do an amount of races or you can finish cc's.
you have to complete certain things to unlock stuff. this website shows you how to unlock everything, including karts. http://www.videogamesblogger.com/2008/04/18/how-to-unlock-all-mario-kart-wii-secret-characters-bikes-karts-and-more-guide.htm
you have to unlock the different karts by racing the world cups.
That's completely opinion based.
They Are Exactly the same cups in the same order as Mario Karts DS
You can unlock the karts in any order so they are all here: Large Karts: Piranha Prowler - Win 50cc Special Cup Dragonetti - Win 150cc Lightning Cup Aero Glider - Win all gold medals in 150cc Cups
This is an interesting question. I really think what you're trying to say is What are the cars in Mario Kart Wii. There are a lot of cars, but they are all grouped based on size. For example, the small characters have small karts and bikes, the medium characters have medium karts and bikes, and the large characters have large karts and bikes. I hope this answered your question, but just in case it didnt, the main kart in the game is the Standard Kart, and the main bike is the Standard Bike. Have a super day!