Spyder Sonar Corner Lights At the 2004 North American International Auto Show, a Bronco concept car was introduced.[11] Some features of the concept car, such as the box-like roof line, short wheelbase, and the round headlamps are features associated with the Early Bronco, but this concept car also had a 2.0 L intercooled turbodiesel I4 engine and a six-speed manual transmission. It was to be slotted next to the Ford Escape, as it would be built on the Escape frame. Ford was considering releasing this for production, but has not made a decision.[12]