The Volkswagen CC Eco Performance concept is going for mean and green.

The well-appointed sedan unveiled at SEMA on Wednesday, is mean to the tune of 311 hp and 313 lb-ft of torque, which comes from a turbocharged, 2.0-liter four-banger. And it has a driving setting that reduces power, but returns a rating of 33 mpg on the highway.

It also gets plenty of the usual SEMA dressings, without being cartoonish. It rides on 20-inch wheels, and stopping is handled by Brembos with 14-inch rotors. Black chrome and a spoiler decorate the exterior. And there's what Volkswagen is calling "ghost" digital accents on the roof. Inside are Recaro seats and piano-black accents.

The turbocharger upgrade by APR Tuned can run in three modes: Full power puts out the engine's top ratings; GT drops you down to 252 hp and 268 lb-ft of torque; and Eco further scales things back to 222 hp and 236 lb-ft.

Most critically, the Eco setting gets up to 33 mpg on the highway and 27 mpg in city driving, which is definitely green. But frankly it's a fairly marginal upgrade, as under full power it gets 24 city and 32 highway ratings.

The customization process started in August in California, and the package has a shot at showing up in some form on the CC in the future, said Andres Valbuena, Volkswagen product manager for the GTI and New Beetle.

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