General Motors introduced the term "silverado" for use on the trim for the C/K pickup trucks. The first generation lasted from 1999-2007. The second generation went from 2007-2014. Both generations offer many different engine packages. They also come with regular cab(2 door), crew cab(4 door), and extended cab (4 door). I own a red 1998 silverado with 236 thousand miles and it still runs great. It was my first truck and I plan to keep it as long as possible.