What exclusive vehicles are in gta story mode?

The verified evidence confirms that Grand Theft Auto V is set in the fictional state of San Andreas and follows three protagonists - Michael De Santa, Franklin Clinton, and Trevor Philips - as they attempt heists while evading criminals and government agencies. However, the evidence does not mention any exclusive vehicles available in the single-player story mode. Without specific information about exclusive vehicles in the provided sources, I cannot make claims about unique cars or vehicles tied to story mode only. The evidence focuses on the game's setting, protagonists, and open-world exploration rather than vehicle specifics.