By Alexei Oreskovic and Ben Klayman SAN FRANCISCO/DETROIT (Reuters) – In 2012, a small team of Google Inc engineers and business staffers met with several of the world’s largest car makers, to discuss partnerships to build self-driving cars. As Google expands beyond Web search and seeks a foothold in the automotive market, the company’s eagerness has begun to reek of arrogance to some in Detroit, who see danger as well as promise in Silicon Valley. For now Google is moving forward on its own, building prototypes of fully autonomous vehicles that reject car makers’ plans to gradually enhance existing cars with self-driving features. “The auto companies are watching Google closely and trying to understand what its intentions and ambitions are,” said one person familiar with the auto industry, who asked to remain anonymous because of sensitive business relationships.