What is the difference between a Sierra and a C3 ?

 

The C3 was like the denali package before the denali came out I believe. I don't think they came standard with AWD and the 6.0 though.

 

The C3 preceded the Sierra Denali and was made for 2001 only. It came in the same colors, has the same Denali exterior appearance package, the same 325hp 6.0, same AWD, same Denali interior....just no q-steer and all that goes with it.

 

Thanks - solves my problem