The rest of the top five filled out with the 2004 Nissan Titan, 2005 Pontiac GTO, and 2004 Chevrolet Colorado. The list generally matches up with popularity with the exception of the GTO.

The nose on the original concept shows what GM was planning for the next-gen GTO at the time. We're glad the prototype styling was deemed too expensive for production; the world wasn't ready for a ...