Porsche introduces 918 Spyder plug-in hybrid sports car
Green Car Congress
MAY 16, 2013
Further extensive lightweight design measures have resulted in such features as titanium connecting rods, thin-wall, low-pressure casting on the crank case and the cylinder heads, a high-strength, lightweight steel crankshaft with 180 degrees crankpin offset and the extremely thin-walled alloy steel/nickel exhaust system. Sport Hybrid.
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