Transportation contributes nearly a third of U.S. greenhouse gas emissions, highlighting the need for full-battery electric vehicle (EV) adoption. Yet ownership remains low, with racial disparities: Black and Hispanic consumers are underrepresented, despite strong interest. Drawing on stereotype bias and cultural mismatch theories, we test whether discouragement in sales interactions drives these gaps. Implicit bias and in-group favoritism may shape perceptions of customer fit, while cultural mismatch can heighten sensitivity to rejection cues. Using survey data from the California Clean Vehicle Rebate Project (N=9,739 EV owners), we examine whether minority EV buyers faced discouragement and whether experiences differed by sales model (i.e., Tesla direct-to-consumer model vs. traditional sales model). Black and Hispanic buyers were more likely than Whites to report that a dealership salesperson attempted to dissuade them from purchasing their EV. For Asians, race alone did not predict dissuasion, but Asian Tesla buyers were more than twice as likely to face discouragement as Asians buying non-Teslas. Findings extend research on stereotype bias in sales settings beyond pricing and credit, showing how biased sales interactions can exclude minorities. Addressing these dynamics is key for equitable access to clean transportation and a green economy.