In response to ever more stringent CO2 emissions regulation, European carmakers are beginning to roll out vehicles fueled by compressed natural gas (CNG). The latest and possibly most advanced of these is the Audi A3 g-tron, which sounds like it might be either a knockoff Transformer or maybe Young Jeezy’s robotic hype man. But it’s [...]
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2014 Audi A3 Sportback g-tron: A Naturally Gassy, “Greener” Five-Door
