AD #1213 – New GM Full-Size SUVs, VW Mulls CNG for U.S., Hankook Air-Free i-Flex Tire

Summary: GM unveils its all-new lineup of full-size SUVs. According to a report, Volkswagen is considering selling CNG powered cars in the U.S. market. Hankook reveals its air-free wheel and tire combination, called i-Flex. All that and more, plus the Autoextremist, Peter De Lorenzo shares his thoughts on how American car culture is changing.