ZL1, Time will tell but you still have to deal with many less than supportive dealers. It (ZL1) may be a nice car but as Chris said, Callaway has that reputation that backs up their product. It's powerfully engineered and I am very happy with mine. It was the ONLY Synergy Green for awhile but there are 2 others. The color was to end in Dec 2010 but as always GM can not stick to their word. I do have the first. Great car, luv it and it gets 27.5 mpg at 74 mph air on temp 84F.
