Porsche introduces 918 Spyder plug-in hybrid sports car
Green Car Congress
MAY 16, 2013
The top pipes’ greatest benefit is optimal heat removal, because the hot exhaust gases are released via the shortest possible route, and exhaust gas back pressure remains low. E-Power mode is the default operating mode at start-up, as long as the battery is sufficiently charged. Race Hybrid. Hybrids Plug-ins'
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