• The ATS V6 returns up to 28 mpg highway.
  • AWD models offer 26 mpg highway.
  • The figures are competitive with rivals.

Fuel economy figures are now official for a new version of the 2013 Cadillac ATS sport sedan. After announcing ratings for the sedan's base-level 4-cylinder engine, the federal government's Environmental Protection Agency (EPA) recently confirmed that the ATS will return 19 mpg in the city and 28 mpg on the highway when equipped with its 321-horsepower 3.6-liter V6 engine and 6-speed automatic transmission.

According to the EPA, all-wheel drive versions of the 3.6-liter ATS will return slightly lower fuel economy, rated by the government agency at 18 mpg in the city and 26 mpg in highway driving. As expected, both figures are lower than fuel economy ratings for the base-level ATS, which offers a 2.5-liter 4-cylinder engine and boasts 22 mpg city and 33 mpg highway. That model, which produces 202 hp, is only available with an automatic transmission and rear-wheel drive.

That means the only ATS model still unrated by the EPA uses the automaker's new 2.0-liter turbocharged 4-cylinder powerplant, which will likely deliver gas mileage ratings between the base 4-cylinder and muscular V6. Producing 272 hp and 260 lb-ft of torque, the 2.0-liter turbo engine features available rear- or all-wheel drive, and should account for around half of ATS sales. The 2.0-liter model will also interest driving enthusiasts, since it's the only version of the sedan available with a manual transmission.

With the latest EPA ratings, shoppers interested in fuel economy can finally compare the ATS to rivals from other automakers. Among its closest competitors, the 2012 BMW 335i boasts an impressive 23 mpg city and 33 mpg highway with its available 8-speed automatic transmission, while the Lexus IS 350 returns at 20 mpg city and 27 mpg on the highway with its 6-speed automatic. At 19 mpg in the city and 28 mpg on the highway, the Mercedes C350's fuel economy rating mirrors the EPA's figures for the ATS.

But while the ATS doesn't offer best-in-class fuel economy with its 3.6-liter V6, it does beat most of its rivals in terms of horsepower. The 335i, for example, offers only 300 hp, while the IS 350 produces 306. The C350, meanwhile, is among the ATS's least-powerful V6 rivals, producing just 268 hp from its 3.5-liter engine.

The ATS goes on sale soon with a starting price of around $34,000 including shipping. Mid-level 2.0-liter models will start from $35,795 with shipping, while the ATS V6 starts at $42,090 including destination.

What it means to you: The bold 2013 Cadillac ATS is the latest take on the premium sport sedan. And with competitive fuel economy figures and muscular engines, it looks like an impressive contender.


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Jeffrey Archer is fortunate to have turned a passion for cars into a career. His wide-ranging automotive experience includes work for automakers and dealers in addition to covering the news. When not writing, he spends his time searching for unique cars on AutoTrader.com.

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