This engine uses two low-pressure turbochargers, each forcing air into a set of three cylinders, boosting horsepower up to 315. BMW says that's good enough to get the 740i to 60 mph in a respectable 5.8 seconds.
January 12, 2010 7:58 PM PST
Photo by: Sarah Tew/CNET
| Caption by: Wayne Cunningham
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