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FIGURE 4-2 The Ford Prodigy concept vehicle. Source: Ford Motor Company and USCAR. 69 in (1,755 mm), a curb weight of 2,385 lbs (1,083 kg), and an aerodynamic drag coefficient of 0.199. Although there are many similarities between the Ford Prodigy and the GM Precept, they represent quite different approaches to meeting Goal 3. Because the Ford power train system is considerably simpler, it is closer to meeting the affordability target of Goal 3, although it sacrifices some fuel economy by limiting the amount of potential regenerative braking. These kinds of trade-offs will have to be made as manufacturers attempt to determine the market acceptability of any of these concepts. Ford has also demonstrated a fuel cell-powered version of the P-2000 car, predecessor of the Prodigy. This vehicle stores gaseous hydrogen under high pressure. DAIMLERCHRYSLERThe power train in the DaimlerChrysler ESX3 PNGV concept car is very similar to the one in the Ford Prodigy (DaimlerChrysler, 2000). The battery, however, is expected to be a Li-ion pack with a peak power capability of 22 kW
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