Has GM learned nothing over the years? There is way too much product overlap. GM does not need four Lambda based vehicles. The companies that are leading the auto industry (i.e. Toyota and Honda) generally produce only one or two vehicles off of the same architecture. GM is going to kill themselves yet by having the expense of producing so many overlapping vehicles. Lambdas, Epsilons, etc... Where does it end? Either cut several brands or make the product portfolios smaller and more unique. I love the Lambda's, but aside from a few content and styling differences, they are all the same car. GM could build one or two Lambda based vehicles and get the vast majority of buyers without the cost of designing so many varients of the same car. End of Rant.