Porsche they have great cars in almost every group.(this includes N-class, GR.B, GR.2, GR.1 and GR.X classes, available in that particular Manufacturer)
dittoPorsche they have great cars in almost every group.
Nissan it is then, because their line up covers ALL car classes.(this includes N-class, GR.B, GR.2, GR.1 and GR.X classes, available in that particular Manufacturer)