I recently got to drive a 2007 GMC Yukon XL Denali and will post a full review about it sometime this week. All I can say for now is "WOW! What a ride!" It's smooth, quiet, comfortable, roomy and a real eye catcher. The list of positives is high, and negatives are few, but noteable, like the 16 MPG average I got while driving. Anyhow, check out the review when it comes around later this week.