DiRT Rally is a great rally game, very hardcore and the best modern equivalent to the great Richard Burns Rally game. However, it’s lacking in polish, UI, and career mode. Not bad per say, just a bit barebones in those regards, but it drives supremely and the driving experience is fantastic.
However, the newer DiRT 4 is a better “game”. It is slightly less hardcore than DiRT Rally but it is much better with regards to career mode, online modes, team building, weather effects, car selection, and it has a procedural generated stage creation tool which can make unique tracks on the fly for you to race. DiRT 4 is a bit easier to play than DiRT Rally, but still challenging enough to be great fun and the overall package just makes it a better rally game IMHO. DiRT Rally’s hand crafted tracks might be slightly better looking due to their details, but the DiRT 4 tracks keep surprising you constantly and are just damn fun to race, every time you drive it’s a new experience and that very nicely captures the essence of what rally racing is all about in my opinion.
It’s got me hooked.