Mario Kart Wii: Custom Track Grand Prix Revolution,
http://wiki.tockdom.com/w/index.php?title=CTGP_Revolution
Requires Riivolution, and an authentic disc, OR getting in to an ISO rip and injecting files MANUALLY...

This hack actually does not overwrite any of MKW's origonal tracks, It adds several cups, and 184 new tracks,
Some good tracks, some bad tracks, fully custom tracks, Ports from other games, and conversions from other genre games levels.

now, there are some bugs to be noted in this,
1: when in custom tracks online, Selecting random will make it lock your selection in random, so, unless you wish for randomization to remain permanent for the duration of the races, do not select this, and do not let the timer run out,

2: this isnt really a glitch, but, Ghost saving is disabled, this is to prevent save data corruption as a result of the hack.

3: Sometimes in time trial mode, the custom tracks will find an available ghost from another track, do NOT view this.

4: NEVER NEVER NEVER select custom tracks when in "original tracks worldwide!"
This can cause several online players machines to CRASH. I cannot stress THIS enough.
Neither I, MFGG, Nor the hacker who made this, will be held responsible if Nintendo smashes you with the Ban-Hammer because you were an idiot!
As a precaution, you should only online play in "custom tracks worldwide" or "with friends" when using this hack!

5: (I havent tested this) the battle tracks are busted. and just crash the game.

With that said, This is definitely a must try!
and since riivolution can be run without any mods, soft mod or otherwise, you really dont have anything to loose.

And YES, the Opponent AI racers WORK!

I've heard about the earlier version of this, but that hack sounds really cool. I ought to grab a copy of Mario Kart Wii sometime, since I've still never played it. Don't shoot me with a Spiny Shell for that blasphemy.

trust me bibby, playing VS mode, your more likely to have the AI pummel you with them over, and over, and over, and over and *hit with a spiny shell*