The EPA has released official fuel-economy ratings for the brand-new 2013 Cadillac ATS premium sports sedan that is offered with a choice of three gasoline engines, two of which can be ordered with all-wheel drive.

The base, rear-wheel model with the 2.5-liter four-cylinder engine that delivers 202-horsepower and a 6-speed automatic is the most fuel-efficient version returning 22mpg city, 33mpg highway and 26mpg combined (10.7lt, 7.1lt and 9.0lt/100km respectively).

With GM’s new 272-horsepower 2.0-liter turbocharged inline-four connected to an automatic transmission driving the rear wheels, the ATS received an EPA fuel economy rating of 21mpg city and 31mpg highway (11.2lt and 7.6lt/100km).

As for the top-of-the-line 3.6-liter V6 engine with an output of 321-horsepower, the rear-wheel drive automatic model offers an EPA tested 19mpg city, 28mpg highway and 22mpg combined (12.4lt, 8.4lt and 10.7lt/100km respectively).

Cadillac’s answer to the BMW 3-Series and Mercedes-Benz C-Class models starts at $33,900 for the 2.5-liter 4-cylinder model rising to $35,795 for the 2.0L Turbo and $42,090 for the 3.6-liter V6 variant.