Companies like Toyota and VW roll out a new chassis once or twice a decade and you see some amount of shared powertrain parts everywhere from economy level to h

Companies like Toyota and VW roll out a new chassis once or twice a decade and you see some amount of shared powertrain parts everywhere from economy level to high-end performance and luxury models. They're really good at building common skeletons where every part of a car is pieced together like interchangeable legos. The research cost is high but the investment is inevitably returned with the scale and time available to these entities.