No, I meant same car different year...

Chrysler 300 and Dodge Charger (RWD)
2009: 370 hp, 398 pounds-feet of torque, 16/24 mpg city/highway
2008: 340 hp, 390 pounds-feet, 15/23

Chrysler 300 and Dodge Charger (AWD)
2009: 370hp, 398 pounds-feet, 16/24
2008: 340 hp, 390 pounds-feet, 15/22

In one year, they figured out how to glean that much more HP an MPG?

Seems very auspicious or suspicious depending on your tack.