Samsung Galaxy owners are entitled to exclusive Forza Street promo pack0
The promotion is available until August 2 and requires those who wish to claim it to own a Samsung account. The promo pack includes the 2015 Porsche Cayman GTS, 100 Gold, and 1,000 Credits. Keep in mind that you have to complete Event 2 in-game to receive the digital rewards included in the promo pack.
If you don't own a Samsung Galaxy phone or tablet, you're not eligible for this reward though. Make sure to visit Samsung's Summer of Galaxy website for more details about how to redeem the Forza Street promo pack, if the info above doesn't help you.
Microsoft released Forza Street back in May and Samsung offered special bundles to Galaxy users, so it looks like their partnership included more than just freebies at launch.