Sacramento restaurateur Ernesto Jimenez was excited, yet afraid to take on the challenge of creating a restaurant in a 6,000-square-foot corner space in the old Arnold Brothers Motor Cars building. He already was the owner of the colorful Mexican restaurant Ernesto's when he and partners bought the 77-year-old building in 2001. And he'd been dreaming about his next restaurant for years. He wanted it to be something special. "It was a beautiful old building, so the restaurant had to match the exterior," he said. "I didn't want it to be just another restaurant. It had to be something beyond that." His visits to the new space at 18th Street and Capitol Avenue told him there was a lot of wo