The M5's engine is an automotive work of art. Using direct injection and two twin scroll turbochargers, it uses BMW's Vanos variable valve timing technology to deliver 560 horsepower and 500 pound-feet of torque from its 4.4 liters.
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September 12, 2012 12:09 PM PDT
Photo by: Josh Miller/CNET
| Caption by: Wayne Cunningham
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