No new Kortz Center dripfeed vehicle turned up this week. What Rockstar ran instead is a Summer Heist Event from July 30 through August 5, built around the two oldest heists in the game. The first completion of The Fleeca Job finale and The Pacific Standard Job finale each pay 2X GTA$. Both shipped with the 1.21 Heists update on March 10, 2015, which makes this a straight nostalgia rotation rather than anything tied to the new content.
The rest of the bonus list: 2X GTA$ and RP on A Superyacht Life missions, Shipwrecks, and Motor Wars, and 3X on the Community Series jobs. Finishing the Fleeca finale unlocks the Fleeca Circuit livery for the Übermacht Cypher, which arrives within 72 hours rather than immediately. Logging in before the week is out gets you the Pacific Standard Sweater. The Lucky Wheel podium car at the Diamond Casino is the Cypher itself, normally GTA$1,550,000 at Legendary Motorsport, and the LS Car Meet Prize Ride is the Karin Boor for placing top five in the series four days running.
On the discount side the Galaxy Super Yacht is 60% off along with all of its modifications, which pairs with the doubled Superyacht Life missions if you have been putting that purchase off. Sources on the week's breakdown: GTABase, GTA BOOM, GameHub, and PCQuest. For anyone tracking the dripfeed instead, the Pegassi Horus and Gallivanter Warden are still unreleased with prices already in the files, and Rockstar has not said when either lands.