there's no doubt they wanted to de-muscle-ify the car which is why as a muscle car enthusiast I absolutely prefer the 2010 model.
backlights lose the distinctive flair for something more japanese, front grill shortened to a mere strip fit for a fleet car not a performance car. My dad's Volvo station wagon has a bigger grill.
Put them side by side and I swear it's like looking at "his and hers" model camaros. Most women I know would still want the earlier version, too, but you get it.