Following the trouble some users had yesterday with the account and region locked DLC for Gran Turismo 5 (resulting in people purchasing the packages and not being able to use them), Kazunori Yamauchi just posted on his personal twitter account with an official response.
There are both good news and bad news, and you can read them straight from the horse’s mouth by speeding past the cut:
Regarding the DLC usage for multiple accounts, e’re planning an another update for GT5 in December. In that update users who purchased cars and tracks from the DLC already, can receive a free “family upgrade” in the PS Store, which will let all users in the same PS console use the DLC.
And though we looked into this, unfortunately there’s no solution for crossing multiple regions.
I’m sorry, but we have to ask you to match the region of your disc and your PSN account setting.
People who bought the DLC cars will have those cars added to the dealers in the December update.
After this December update you can purchase a second car and so on from the dealer.
He also added that those that purchased the DLCs can expect a Christmas Present, even if he specified that they shouldn’t get their hopes too high:
Next, don’t get your hopes up too high, but PDI is also readying a X-mas present for those who’ve already bought multiple DLCs.