Source:  Andretti Autosport DE SILVESTRO ADDED TO ANDRETTI AUTOSPORT LINEUP Swiss Racer to Compete at Verizon IndyCar Series Season Opener with Andretti INDIANAPOLIS (March 11, 2015) – Simona de Silvestro was announced today as the fourth driver to the Andretti Autosport Verizon IndyCar Series lineup for the 2015 season. The Thun, Switzerland native is currently…