More fuel economy numbers for the 2013 Cadillac ATS are now in, with the 272-horsepower 2.0L turbocharged four-cylinder model achieving a 21/31 mpg city/highway rating in the EPA testing cycle. These numbers are achieved when the ATS 2.0T is equipped with an automatic transmission powering the rear wheels only — the six-speed manual available in the 2.0T has yet to be rated.
Those numbers are not far at all from the base 202-horse 2.5L engine, which gains just one more mpg in the city and two more on the highway. But yet again, the fuel economy of the ATS 2.0T falls short of the BMW 328i’s 23/33 rating. We can only imagine what an eight-speed transmission would do for the ATS’ efficiency, as the rival BMW certainly enjoys that edge currently. But with the ATS 2.0T being 32 hp more powerful than its German rival on paper, it may even the odds in the eyes of buyers.