GM has a four brand portfolio it uses to satisfy its US customers. How are they faring in these challenging times? Let’s find out by looking at the ‘middle class’ divisions, Buick and Cadillac. Buick: A modest range of vehicles, all under the crossover or SUV classifications. It had sales of slightly over 183,000 or 7% of GM sales in total. It is a semi-premium marque, neatly nestled
