The "e sport" edition is the WRC equivalent of ultimate edition, has all the extra cars and tracks. Well it's on sale for the next few days in the xbox store for $10.
So far, I've spent about an hour messing around in rally school, getting frustrated working on line control, but it does show a lot of promise. Plus the servers are still up and there's a multiplayer mode!
So looking for cheap fun on your xbox one, grab this up this week. You might have to search for it in the store, I found it by accident.