If you live in California you're blessed with a lot of things, including weather patterns that seem to get stuck in a rut an awful lot. Another treat you'll find is an additional $5,000 rebate on cars that are rated AT-PZEV -- that's Advanced Technology Partial Zero Emissions Vehicle, those having very low emissions and hybrid-like technology. The 2011 Chevrolet Volt failed to score that rating because its batteries are not rated for 10 years and 150,000 miles, part of the AT-PZEV rules, but GM is apparently looking to fix that next year with a version of the Volt that will qualify. It's unclear whether a