It is a GMC Denali, the expensive version of the Yukon. I tried to get my dealer to let me test tow but they were reluctant to agree to it. Plus it is not enough tow power for my 31'er. Dick Martin 2000 31' Limited 2001 GMC 2500HD Duramax mailto:martin13@internetcds.com http://home.cdsnet.net/~martin13