• The ATS is rates at 22 mpg city and 33 mpg highway
  • Its combined rating is 26 mpg
  • The sedan goes on sale later this summer

The federal government's Environmental Protection Agency (EPA) recently announced fuel economy ratings for one variant of Cadillac's highly anticipated ATS sport sedan. According to the EPA, the new sedan's 2.5-liter four-cylinder model can achieve 22 miles per gallon in city driving or up to 33 mpg on the highway, earning a combined rating of 26 mpg.

The recently released ATS fuel economy ratings place its gas mileage near the top of the premium sport sedan segment. Audi's entry-level A4 2.0T, for example, offers 211 hp - 11 more than the ATS - but returns maximum fuel economy ratings of just 22 mpg in the city and 30 mpg on the highway. BMW's 240-hp 328i achieves slightly better ratings of 23 mpg city and 33 mpg highway, while the 201-hp Mercedes C250 is rated slightly lower, at 21 mpg in the city and 31 mpg in highway driving.

But while the ATS fuel economy ratings are similar to the numbers achieved by its rivals, the sedan's base model holds one distinct advantage. While the A4, C250 and 328i are each designed to run on premium fuel, the 2.5-liter ATS uses regular unleaded. That makes each trip to the pump more wallet-friendly in the entry-level Cadillac, even if the trips are nearly as frequent as in rivals

Unfortunately for prospective ATS buyers interested in the sedan's optional 270-hp 2.0-liter turbocharged 4-cylinder engine or the range-topping 320-hp V6, the EPA only rated the model's base-level 4-cylinder. We think the 2.0-liter turbo will return around 20 mpg in the city and 28 mpg on the highway, while the 3.6-liter V6 will fall just short of those figures. If those numbers pan out, the fuel economy figures for ATS will once again fall between those of its rivals - though the sedan's larger engines lose their regular fuel advantage, as Cadillac recommends premium for both optional powerplants.

Expected to go on sale later this summer, the ATS is priced from $33,990 including destination for its base-level 2.5-liter four-cylinder. Mid-level turbocharged models will start around $36,000, while the range-topping ATS V6 offers a base price of $42,090. Rear-wheel drive is standard, while all-wheel drive is optional for buyers in the Snow Belt.

What it means to you: The ATS is priced like established European competitors - and now it has the fuel economy to match.

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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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