The Environmental Protection Agency has revealed the first official fuel economy numbers for the 2013 Cadillac ATS. When equipped with its base 2.5-liter inline-four engine and six-speed automatic transmission, the Cadillac ATS will return 22/33 mpg (city/highway), with a combined figure of 26 mpg.
That official rating just slightly bests Cadillac's estimates of 22/32 mpg. The base engine produces 202 hp and 191 lb-ft of torque; a Cadillac ATS so equipped starts at $33,990 after destination. The 2.5-liter mill is the only Cadillac ATS engine option that cannot be paired with all-wheel drive.
Those fuel economy figures prove that the 2013 Cadillac ATS is more efficient than the slightly larger CTS sedan -- although the CTS has more powerful V-6 engines. Cadillac's existing sports-luxury sedan returns 18/27 mpg with its 270-hp, 3.0-liter V-6 engine and rear-wheel drive; the upgrade 318-hp, 3.6-liter V-6 is rated at 18/27 mpg.
How does the new ATS stack up against its key rear-wheel-drive sedan rivals? The 2012 BMW 328i, equipped with an eight-speed automatic transmission and a 240-hp turbo-four engine, musters 23/33 mpg on the EPA tests. The 2012 Mercedes-Benz C250 sedan, which has a seven-speed automatic and 201-hp turbo-four engine, returns 21/31 mpg. The 2012 Infiniti G25 sedan, with a 218-hp V-6 engine and seven-speed automatic transmission, scores 20/29 mpg. The ATS base engine's fuel economy, then, is about on par with its competitors.
The 2013 Cadillac ATS also will be offered with a 270-hp, turbocharged 2.0-liter inline-four engine, and a 321-hp, 3.6-liter V-6.The carmaker predicts the turbo engine will return 22/32 mpg, and the V-6 will return 19/28 mpg, but official EPA numbers aren't ready yet.
The Cadillac ATS goes on sale later this year.