www.gran-turismo.com Support

I forgot the e-mail address I used for registration.
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In the case you have forgotten your registered e-mail address, you will not be able to log in, change your e-mail address settings, or change your password settings.

Please refer to the message we have sent to you, upon your membership registration. Even if you have changed your initial e-mail address, you will have received a confirmation message from us at your new e-mail address.

If you have deleted these messages and have no way to remind yourself of the registered e-mail address, we must ask for you to complete the Membership Registration process from the beginning and to create a new account.

Membership Registration