TrueCar, the online auto pricing and operator of auto buying programs said Thursday that AAA Carolinas has partnered with the company, and will use TrueCar to power its online auto buying program. Financial impact of the win was not disclosed. AAA Carolinas serves over 1.8 million members in North and SOuth Carolina. TrueCar said AAA Carolinas is the 18th AAA organization which is powering their auto buying program with TrueCar. TrueCar is based in Santa Monica.