New gamemodes, Custom Tracks, Wiimmfi, and more!
MKW Ultra Pack has HD Item Textures over the original Item Textures!
Like in Mario Kart DS, Mario Kart Wii Ultra Pack has Mission Mode!
Waluigi Kart Wii
Everything from Waluigi Kart Wii except for Story Mode and Wah Items are ported to Mario Kart Wii Ultra Pack!
(Item Rain and 8 Lap Chaos will be ported over in later release)
Check out that distribution here