就拿今年中型车里的Ford Fusion做比较吧:
(三个数字分别是 city, combined, highway 的mpg)
1. 2013 Ford Fusion Hybrid FWD 4 cyl, 2.0 L, Automatic (variable gear ratios), Regular Gasoline:  47, 47, 47 
2. 2013 Ford Fusion FWD 4 cyl, 1.6 L, Manual 6-spd, Regular Gasoline:  25, 29, 37
3. 2013 Ford Fusion FWD 4 cyl, 1.6 L, Automatic (S6), Regular Gasoline:  23, 28, 36
4. 2013 Ford Fusion FWD 4 cyl, 2.0 L, Automatic (S6), Regular Gasoline:  22, 26,33
5. 2013 Ford Fusion FWD 4 cyl, 2.5 L, Automatic (S6), Regular Gasoline:  22, 26, 34
6. 2013 Ford Fusion AWD 4 cyl, 2.0 L, Automatic (S6), Regular Gasoline:  22, 25, 31
7. 2013 Ford Fusion FWD 4 cyl, 1.6 L, Automatic (S6), Regular Gasoline:  24, 28, 37
数据出处:  http://www.fueleconomy.gov/feg/bymodel/2013_Ford_Fusion.shtml
看看有hybrid和没有hybrid的差别就很明白了。。。又岂止是“貌似拾回些废弃的能”?