My Shadow Edition black-granite HHR reminds me so much of my dad's early 1950's Chevy truck. The HHR is a real nostalgia machine! Chevrolet has captured the 1950's feel with modern day convenience included. I love this vehicle more and more, and every time I get into it the great old memories come flooding back.
Exterior design, retro look and feel especially of the windows, doors, and fenders.
Improving anything on this vehicle might take away from its great retro styling, so it would be best to leave it as is.