If there's one way to convince buyers of the advantages of smaller displacement engines with fewer cylinders, it's to do it through motorsports. And now General Motors is marking its return to the IndyCar Series with a new twin-turbocharged, direct-injected V6 racing engine powered by renewable E85 ethanol fuel that will essentially replace the older V8 program. The new, purpose-built Chevy IndyCar engine will be co-developed by General Motors and Ilmor Engineering
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