Mario Kart Wii/Karts and bikes

For the first time in the Mario Kart series, you've got a choice between two types of vehicles. As with the characters, the karts and bikes fall into three weight classes, which affect how the vehicle handles and how it reacts following collisions or impacts.

Heavier bikes and karts will be affected less by impacts from other racers and have higher top speeds than their lighter counterparts, but the smaller vehicles will accelerate faster following collisions or weapon impacts and have sharper handling.

Lightweight

 * Standard Kart S
 * Booster Seat
 * Mini Beast
 * Standard Bike S
 * Bullet Bike
 * Bit Bike

Middleweight

 * Standard Kart M
 * Classic Dragster
 * Wild Wing
 * Standard Bike M
 * Mach Bike
 * Sugarscoot

Heavyweight

 * Standard Kart L
 * Offroader
 * Flame Flyer
 * Standard Bike L
 * Flame Runner
 * Wario Bike

Lightweight

 * Rally Romper — Unlock 1 Expert Staff Ghost Data
 * Cheep Charger — Attain at least 1 star for every 50cc Wii Cups
 * Blue Falcon — Win the Mirror Lightning Cup
 * Quacker — Win the 150cc Star Cup
 * Magikruiser — 8 recorded times on Time Trials
 * Bubble Bike — Win the Mirror Leaf Cup

Middleweight

 * Super Blooper / Turbo Blooper

Heavyweight

 * Piranah Prowler
 * Twinkle Star - Win the 100cc Star Cup