2006 Chevrolet Avalanche LS 1500 4dr Crew Cab SB (5.3L 8cyl 4A)
My 2006 2WD Z66 is a replacement for my 2002 Z66. Chevy must be doing something right as this was the first time I've ever repeated on a vehicle. The mileage continues to be a problem as would any vehicle this size and weight. Most comfortable and smoothest riding vehicle I've ever owned and this one is number 18. For my money, there's not a better highway car.
Ride is better than most sedans. I find it very roomy and I'm 6'4". Very stable handling in the wind as well as highway quiet.
Saw the 2007's today and it looks to me as any improvements I could want on mine is on the 2007.