throughout the following years, as it underpinned more Chrysler prototypes: the 1989 Chrysler Millennium and the 1990 Eagle Optima. By 1990, it was decided that the new technologically advanced car would need a new technologically advanced engine to power it. Until that time, the only engine confirmed for use was Chrysler's 3.3 L pushrod V6 engine. Chrysler's old engineering system would have required up to five years, but both the engine and manufacturing teams committed to "Job 1" to have a new 3.5 L engine as "an absolute cornerstone for the car." Under Castaing's leadership, Chrysler developed an advanced engine in three years for the start of Concorde production that featured SOHC cylinder heads with four valves per cylinder. The appearance, still based on the cab forward exterior design of the 1987 Lamborghini Portofino concept, with its aerodynamic shape, made for little wind noise inside this large car. This sleek styling gives the Concorde a low drag coefficient which was ahead of its time. Although American Motors' Eagle Premier (and Dodge Monaco) was discontinued by Chrysler after the 1992 model year, the new Concorde's packaging was derived from the Premier, and all the suspension and drivetrain development mules were Premiers. Other design features found their way into the Chrysler LH platform, most notably the longitudinal engine layout, a hallmark of Renault's front-wheel-drive designs. This design allowed engineers to lower the hood line, made maintenance/servicing simpler, and tightened the car's turning diameter. First generation (1993–1997) The first generation of the Concorde debuted at the 1992 North American International Auto Show in Detroit as a 1993 model. It debuted as a single, well-equipped model with a base price of US$18,341. Out of all the LH sedans, the first generation Concorde was most closely related to the Eagle Vision. The Concorde was given a more traditional image than the Vision. The two shared nearly all sheet metal in common with the main differences limited to their grilles, rear fascias, bodyside moldings, and wheel choices. The Concorde featured a modern take on Chrysler's signature waterfall grille. It was split into six sections divided by body-colored strips with the Chrysler Pentastar logo on the center strip. The Concorde's rear fascia was highlighted by a full-width and full-height lightbar between the taillights, giving the appearance that the taillights stretched across the entire trunk. In keeping with its upscale position, Concorde's body side moldings incorporated bright chrome