<ul data-eligibleForWebStory="false">Most Tesla vehicles will receive xAI's Grok integration by next week.Grok, an AI chat bot from xAI, will bring new features to Tesla owners.Controversy surrounds Grok due to antisemitic rhetoric and CEO's distractions.Grok integration could offer voice assistance and deep phone-to-car integration.Tesla faces challenges with slipping sales and political perception affecting brand reputation.