This game is great ! I've been waiting a long time for decent physics to be paired with fast, rough racing again.
Those of you mentioning slightly older games should also check out Powerslide by Ratbag games. You can get it dirt cheap now and I still think that it is one of the best racing games ever made. Like FlatOut, it also has lots of serious banging around with the other cars and the wildest tracks I've ever seen. Ratbag was one of the first companies to put decent physics in racing games. Their game Leadfoot was pretty good too. I still play them both.