By Luc Olinga Veteran carmaker GM is attacking the top of the top in the electric market with a sophisticated model. General Motors (GM) – Get General Motors Company Report continues to play hide and seek with its rivals. The veteran carmaker has decided to gradually reveal a vehicle that is supposed to restore Cadillac, its premium brand, to its place in the select club of luxury cars. The objective of the group, led by Chief Executive Mary Barra, is to restore Cadillac’s nobility by reclaiming the tagline that made it famous and the hallmark of prestige: “Standard of the World.” Enter the Ce…