Flywheel has a new executive team, a fresh round of funding, and serious ambitions to scale bigger than competitors like Uber. The San Francisco-based company, which develops a hailing app for taxi drivers, today announced a $12 million Series C round that pushes total funding past $34 million. Flywheel also named a new executive team led by CEO Rakesh Mathur, a veteran Silicon Valley entrepreneur who has sold companies to Amazon, Dropbox, and OpenTable.