VW, Renault, GM, others bet big on megaplatforms

Mary Barra skipped Europe's biggest auto show of the year to focus on what is arguably her biggest strategic announcement so far as General Motors CEO. While other managers were in Paris last month, Barra briefed investors on her ambitious plan to reduce GM’s confusing slew of more than two dozen, largely integrated vehicle architectures to just four modular megaplatforms over the next 10 years.