Trackmania is a bewilderingly names, many pronged series of videogames. In technical terms, there are only two: Trackmania and Trackmania 2 Canyon. However, the first game has many releases, each more confusingly named than the last.
There are two versions right now. There is the free version, Trackmania Nations Forever, which has enough content to play forever, and then there's Trackmania United Nations Forever, which has all the content of the free version plus a bunch more modes.
I've had the full version for quite a while now and I've been chipping away - over 3 computers and many failures to backup save-files when reinstalling Windows. I'm finally comfortable enough marking this as :B:. I may not have a lot of medals or True Skill points, but I am currently in the top 40% which I think is pretty respectable considering how long a lot of people have been playing this game for.
This game makes me oscillate between 'omg I love this' and 'omg why can't I do this bloody race' and I wouldn't have it anyway. 5/5 stars.