I just downloaded the DLC and it is not working at all, are they still having issues or whatever...???? errr what.
Should be working did the download corrupt maybe? Oh and expect a forced GT change at some point soon.
I deleted it from my hdd then re-downlaoded it like 5 times and still doesnt work, and word i have had this for a while now i really dont care lol
Contact Xbox support via twitter. They are quick to reply and very knowledgable