I'm being distinctly argumentative today, just before I head to Europe for a holiday. I don't know whether you are aware but Groupe Renault has a distinctly cosy relationship with with Mercedes Benz, to the point of sharing engines, platforms and design. Your remarks trying to discredit MB for it's use of cost sharing (about which their shareholders are in raptures) are totally unwarranted as they still do their own engineering before anything goes into production.