Here is my impression of the Silverado SS.
I know the red one is sitting pretty high, but I thought it was low enough when I finished drawing it. It's still pretty high though. I did use a digital camera to take the pictures, so they are off a little in proportion. The silver one was drawn in a dramatic perspective so the front looks narrow.
I didn't try to make the truck low like the 427 concept because I keep getting a ricer vibe out of the 427, plus I used images of past ss trucks as inspiration and reference, so you may notice some parts of the truck that you may have seen elsewhere. Also, I think with the slightly higher stance than other lowered trucks, it gives the truck a hot rod like feel in a way.
If you have suggestions, criticism, I'd like to hear them.
Since school is out for the quarter, I was able to finish this drawing pretty quickly. I'm planning on designing my own HHR design, plus I'm thinking of a Tahoe SS as well.
Edited: Here are two more pictures to show each truck in better detail, sorry I can't scan images right now: