first one looks good, the background has a nice HDR look to it. The car doesn't do much. As for the second picture, it doesn't really look like this was an HDR able scene.
The rear tires are on backwards. I just dont think either scene is allowing for a wide range of colors.
Interesting looking building in the first one. Why are red sports cars such a turn off for me??? Oh yeah, because I'm poor. The car is the color of a cherry Slurpee. Very nice.