What did the chief engineer of the 2004 Sienna minivan do to help its success? He isolated himself and his team from the rest of the company to break away from prior designs He took all of his ideas from competitors' minivan designs and combined them He took a long road trip in a minivan, talking to and observing real customers He looked at reviews from the old design of the Sienna minivan to decide what kind of design would have the most mass appeal