Porsche is considering five agencies for its North America creative account, per sources. Durham, NC-based McKinney, Droga5 in New York; the Miami office of Crispin Porter + Bogusky; Olson in Minneapolis; and the incumbent, Chicago-based Cramer-Krasselt are in the running. Porsche chose the finalist from a broader field of agencies that got RFPs. Media spending on the brand totaled nearly $15 million in 2011, according to Nielsen.