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As CES opened Tuesday to the public, auto and tech companies like Nvidia and Gentex showed how AI technology can transform cars into proactive companions that adapt and react to drivers and passengers in real time. Nvidia announced Alpamayo at the annual tech trade show in Las Vegas. CEO Jensen Huang says it’s the company’s new vehicle AI initiative that will help autonomous cars think through complex driving decisions. Smart vehicles on display across the show floor envision a future where cars that track heart rates and emotions is the norm. Experts say these technologies can offer real safety benefits but warn about privacy concerns as cars become major data collectors.