You cannot "get all karts" instantly—there is **no DLC or cheat code** to unlock everything. Mario Kart Wii uses a pure progression system. Here's the complete unlock list:
| Kart / Bike | Unlock Requirement |
|---|---|
| Standard Karts/Bikes (Basic) | Available from start |
| Medium Karts/Bikes | Win 50cc Leaf Cup (Gold Trophy) |
| Large Karts/Bikes | Win 100cc Leaf Cup (Gold Trophy) |
| Special Vehicles (e.g., Blue Falcon, Sprinter, Honeycoupe, etc.) |
|
| Character-Specific Vehicles | Unlock the character first (via ghosts, time trials, or cups), then their vehicle becomes available. |
Note: There are 36 vehicles total (18 karts, 18 bikes). No microtransactions, no Amiibo, no hidden codes. Pure skill progression.