INDIANAPOLIS – Reigning Indianapolis 500 champions Andretti Autosport and hhgregg (NYSE:HGG) announced a multi-year partnership today for the Indianapolis-based company to serve as the lead, co-primary sponsor for Marco Andretti and the No. 27 Honda-powered entry in the Verizon IndyCar Series, and as a team-wide sponsor across all Andretti Autosport IndyCar entries beginning in 2017.