The 2014 GMC Sierra-2500HD is 18 ft. 9 in. (225 in.) long.
It's worth about $13,000. See quotes at http://www.edmunds.com/gmc/sierra2500hd/2006/index.html
The 2014 GMC Yukon is 16 ft. 10 in. (202 in.) long.
The 2014 GMC Terrain is 15 ft. 5.3 in. (185.3 in.) long.
The 2014 GMC Savana is 18 ft. 8.1 in. (224.1 in.) long.
The 2014 GMC Acadia is 16 ft. 8.8 in. (200.8 in.) long.
The 2014 GMC Yukon-XL is 18 ft. 6.4 in. (222.4 in.) long.
The 2014 GMC Sierra-3500HD is 18 ft. 9 in. (225 in.) long.
The 2014 GMC Savana-Cargo is 18 ft. 8.1 in. (224.1 in.) long.
The 2014 GMC Sierra-1500 is 17 ft. 1.6 in. (205.6 in.) long.
The 2014 GMC Yukon has a 6 yr./ 100000 mi. warranty against rust.
The 2014 GMC Yukon includes 5 yr./ 100000 mi. of roadside assistance.
The 2014 GMC Savana has a 6 yr./ 100000 mi. warranty against rust.