The other main joint venture, Ford-led Ecostar, takes the machinery from Stuttgart and fits it into electric motors, transmission and control equipment to make a fuel-cell engine that can turn the wheels of a car or a bus.
Under their balcony a bus stopped, brakes wheezing, its doors slapped open, then shut, engine roaring and sending up a plume of noxious smoke as it rumbled away.
His teammates say Mr. Westbrook first showed off his most famous pair the fire-engine red, lensless Retrosuperfuture frames that resemble Ray-Ban's iconic Wayfarers on a bus trip during the regular season.