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Green Car Congress
Mar 6, 2015, 12:18 pm164 ptsThe new naturally-aspirated 5.2-liter V10 engines in the newly introduced second-generation high-performance Audi R8 (earlier post) introduce two new efficiency technologies to that platform: supplementary port fuel injection, and cylinder-on-demand, along with a new start-stop system. The ten-cylinder engine…
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