E-commerce will bring important cost benefits to the auto industry over the next 5 years, which will come not only from purchasing, but also many other functions such as product development. "Build To Order" won't be the industry's panacea and manufacturers will evolve from the current "Build to Dealers' Lots" towards the "Build to Consumer Demand" model. These are some of the key findings of a study published by Roland Berger Strategy Consultants in conjunction with Deutsche Bank's Global Automotive Research Team.