well if i only include certain years of generations of being what i like then i would say my least favorite is the 4th gens overall....but i really hate the 2nd gens after they went to the plastic bumpers. but i love the early 70's with the rs split bumper and the huuuge open grill!
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2010 ABM 2SS/RS, A6, home Dec 10th, wifes birthday present!
2007 GMC Yukon XL, 2000 S10 Xtreme, 1969 Chevelle