Graphically poor yes, but very playable and fun rally racing game indeed. Only rally game for Wii so far.
Audio has realistic suspension noises and sound effects and there is some racing music which you could turn off if you want.
It isn't easy if you use Pro level settings, it is quite hard indeed, but you can't use Pro settings in World Tour mode, but only in Championship mode. Game has real car models which is good bonus. There is couple of camera views bonnet and outside cameras, but not in-car camera in Wii version.
There is only split-screen multiplayer, but it is fun with friends, if you want to play rally game for a change and like rally racing.
There isn't anything else but driving in this game, but it is like all other racing games, driving for winning, nothing more or less. It is quite fun game if you own Wii and like rally and don't be afraid of bad graphics.
Finally rally game for Wii with real cars on gravel roads.