Pardon my excitement, but this is a great game. So, the good guys at Nadeo did it again, releasing an update to the acclaimed TrackMania Nations that was also given away two years ago. Not only that, but those who purchased TrackMania United can download a BIG patch to update the game to the new installment.
What's so great about this game? Apart from being something impressive to be offered for free, the game is total mayhem and joy all the way. It's the simplest racing game you could ever think about, but that doesn't mean it's challenging. It's exactly the same as I used to do when I was a kid, playing with toy cars over the strangest tracks conceived with whatever I had at hand, but this time is for grown-ups, so you don't have to feel bad about it ;)
Their servers are getting hammered, so you'll probably have better luck downloading it from external servers, either the one I link above, or from your favourite gaming site.