The youngest Andretti will team with Bryan Herta and Christian Fittipaldi in America 's greatest sports car race .
Marco Andretti will drive the XM Satellite Radio Acura ARX - 01b entered by Andretti Green Racing , of which his father Michael is a principal owner .
The youngest Marco Andretti will team with Bryan Herta and Christian Fittipaldi in America 's greatest sports car race .
Marco Andretti will drive the XM Satellite Radio Acura ARX - 01b entered by Andretti Green Racing , of which his father Michael is a principal owner .