Rockstar Games passed along details on the "next saga in the Southern San Andreas Super Sport Series" that is now available to players near and far for GTA Online. This update includes races dedicated to the Imponte Deluxo, Ocelot Stromberg, and the Mammoth Thruster.
New Special Vehicle Circuit RacesHere's a rundown of all the new Special Vehicle Circuit Races now available to play, with links to bookmark each of them on Social Club for quick and easy access:

Imponte Deluxo RacesOcelot Stromberg RacesMammoth Thruster RacesDouble GTA$ & RP BonusesSpecial Vehicle DiscountsPremium Race & Time Trial Schedule
Premium Race: Downtown Loop (Supers)
Time Trial: "Fort Zancudo"