The '07 LTZ Avalanche is like driving a luxury car. Very smooth and handles great through the Minnesota blizzards. Very safe. The back seat has lots of leg room. Kids love the wireless DVD player. It is a great looking truck. I try to burn E85 as much as possible. The 8 cylinder to 4 is a joke. It only drops to the 4 when you are going down hill or coasting. My mileage is 14.50 on regular gas and 12.00 on E85. The engineers should look at the competion like Tundra and Rideline, they could build the best of the best. Look at my suggested improvements below and simple things like mudflaps, reciever hitch plug, a business card slot, put a K & N filter in as stock. A quicker engine would be great
Backup camera, navigtion device, chrome 20"rims, sound system, remote start,3 piece cargo cover works well if you take out the last one for dogs. Then they can use the front 2 for a dog house if it's too breezy. Rubber mat bed liner, lockable top-box storage. The ride is superb.
Tailgate should swing open both ways and the cargo box should have a trunk like the Ridgeline. Backup camera needs to be much faster. Sunglass and coin holders would be nice, center councel should be departmentalized for phones, etc., copy the Toyota Tundra. Upper glove compartment, double visor.