How to unlock all carts and bikes

Small carts

Unlock Tiny Titian by beating 50 people online or unlock 1 expert staff ghost
Unlock Cheap Charger by getting star ranking on all 50cc cups
Unlock Blue Falcon by winning Lighting cup on mirror mode

Medium carts

Unlock Super Blooper by winning 50cc Leaf cup
Unlock Springer by getting 24 expert staff ghosts
Unlock DayTipper by winning 150cc Leaf cup

Large carts

Unlock Honeycoup by winning 150cc lighting cup
Unlock Jetsetter by getting star ranking in all 150 cc cups
Unlock Piranah Prowler by winning 50 cc special cup

Small bikes

Unlock Magikruiser by doing time trial on 8 courses
Unlock Quacker by winning 150 cc star cup
Unock Jet Bubble by winning leaf cup on mirror mode

Medium bikes

Unlock Dolphin Dasher by winning star cup on mirror mode
Unlock Sneakster by getting star ranking on all 100cc cups
Unlock Zip Zip by winning 10cc Lighting cup

Large bikes

Unlock Shooting Star by winning 100cc star cup
Unlock Spear by getting 12 expert staff ghost time trial
Unlock Phantom by winning special cup on mirror mode