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Detroit 2012: The 3 Engines Of ATS


William Maley
Editor/Reporter - CheersandGears.com
December 14, 2011

Today, Cadillac has revealed the powertrain lineup for their new ATS sedan. The lineup includes two fours and a six.

The base ATS engine will be naturally aspirated 2.5L I-4 engine. GM hasn't released any details about it, but it looks like to be the same engine found under the new Chevrolet Malibu, which gets 190 HP and 180 lb-ft of torque.

The next engine up is a 2.0L turbocharged I-4.Now before you go out and think this is the same engine you find in the Regal Turbo and GS, it's not. This 2.0L turbo is a part of a new Ecotec engine lineup and will use an electronically controlled twin-scroll turbocharger to keep its torque curve flat. The 2.0L Turbo is rated at 270 HP and 260 lb-ft of torque. The ATS will be the first vehicle to use this engine and could possibly find it's way into the new Malibu.

The top engine is the venerable 3.6L direct injected V6 making 318 HP and 275 lb-ft of torque.

Press Release is on Page 2






170 Comments

Glad to see the 3.6L in there.
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The Turbo will finally get a chassis that will let it show what it can really do.

I now really don't expect a V8 in the V but I still expect a lot of power.
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Naturally aspirated 2.5L sounds like a fail. Hope the 2.0T improves on what's offered on the Opels, Buicks, and Saabs, as they've been generally underperforming engines with lousy NVH.
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Can't understand why they would put the 2.5L in there unless they are mating it to a 2-mode hybrid.
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If its small and light I don't see the problem, I'm interested in the 2.0T. Sounds like the best of the engines to me.
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2.5 N/A To cater EU Market. Infiniti and Lexus have the smaller displacement 2.5 with around 200hp. I think Cadillac is covering the entire spectrum.
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I think the 2.5 might see a hp bump for the ATS.
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I think the 2.5 might see a hp bump for the ATS.

GM usually bumps the power when they turn their engines 90 degrees, so I agree.

By how much do you think?
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I just looked up competitors.

The ATS will be matched only by the C-Class in the number of mainstream engine offerings (three). BMW, Infiniti, and Lexus only offer two, and Audi only has one.
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I assume they will also have a diesel for Europe.
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I don't like the idea of the 2.5 liter, that belongs in Chevy, not a Cadillac. If they want a 3rd engine, it should be a turbo diesel 4-cylinder because they need it in foreign markets anyway. I do like the 2.0T and V6 choices. Although I think the V6 needs more torque to set itself apart from the 2.0T and compete better with the 335i.

Problem is Cadillac is stuck with a 6-speed transmission while Infiniti, Mercedes and BMW have 7 or 8. So will the fuel economy and acceleration numbers be able to match up what that class has to offer.

This new 2.0T has less horsepower and torque than a Hyundai Sonata Turbo, so I hope the tail pipe emissions from the ATS can cure birth defects in baby seals.
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Well the Dodge Dart is going to have a nine-speed ZF transmission. Shame BMW is "stuck" with a lousy seven or eight, when an economy car... from DODGE... will have them beat by two cogs.

What kind of rinky dink operation are they running? Get with the times, Germany.
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I wonder how those poor saps at Acura manage with only 5 forward gears?
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I wonder how those poor saps at Acura manage with only 5 forward gears?

They don't, their brand is folding up and moving down market.
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Well the Dodge Dart is going to have a nine-speed ZF transmission. Shame BMW is "stuck" with a lousy seven or eight, when an economy car... from DODGE... will have them beat by two cogs.

What kind of rinky dink operation are they running? Get with the times, Germany.

BMW has 8-speed ZF, Mercedes though makes their own transmission and will have a 9-speed by they time the Dodge Dart does. But kudos to Dodge, it will be the Dart and the S-class ushering in the era of 9 forward gears. Although Hyundai has already begun working on a 10-speed transmission so the Book of Genesis may be rewritten to "in the beginning, there was a V8 and RWD and then God said "let their 10 forward gears" and there were 10 forward gears.
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cadillac had better be light, otherwise the extra power is for naught vs. the competition
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I don't like the idea of the 2.8 liter, that belongs in a Mini, not a BMW. :P
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I don't like the idea of the 2.8 liter, that belongs in a Mini, not a BMW. :P

Huh? The biggest MINI engine is a 1.6, albeit a turbocharged one.
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I am not sayin' the 2.0t won't be fairly decent, I'm just sayin' I like understressed engines in my luxury autos.
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The 2.0 is not by any means stressed with the torque it will have. It will perform fine and run well into the six figures in miles with no issue. It is only now going to be in platform that it deserves.
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I don't like the idea of the 2.5 liter, that belongs in Chevy, not a Cadillac. If they want a 3rd engine, it should be a turbo diesel 4-cylinder because they need it in foreign markets anyway. I do like the 2.0T and V6 choices. Although I think the V6 needs more torque to set itself apart from the 2.0T and compete better with the 335i.

Problem is Cadillac is stuck with a 6-speed transmission while Infiniti, Mercedes and BMW have 7 or 8. So will the fuel economy and acceleration numbers be able to match up what that class has to offer.

This new 2.0T has less horsepower and torque than a Hyundai Sonata Turbo, so I hope the tail pipe emissions from the ATS can cure birth defects in baby seals.


The Hyundai is not an issue since this will not be the highest powered engine in this car as time moves on. This turbo is more like the 220 Turbo in the Regal. It is the better engine not the best to be offered.

As for tranny GM does transmissions better than anyone. I am sure this car will be right no matter if it has 6-8 or 10 gears. Many of their six speeds now most people could not tell what gear they are in as they as so smooth. Even my 6 speed in the Malbu will suprise me on where it is at when I pull it into manual.
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European POV: no diesel, no sales...
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Changing the LFX from transverse to longitudinal takes the power from 305 to 317. So I would expect the 2.5 to be over 200 in the ATS.
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Changing the LFX from transverse to longitudinal takes the power from 305 to 317. So I would expect the 2.5 to be over 200 in the ATS.

Why just 317 from the LFX when it makes 323 in the Camaro?

I would agree, and hope that you're right, on the 2.5.
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Changing the LFX from transverse to longitudinal takes the power from 305 to 317. So I would expect the 2.5 to be over 200 in the ATS.

Why just 317 from the LFX when it makes 323 in the Camaro?

I would agree, and hope that you're right, on the 2.5.


Probably different intake or exhaust..and the Camaro is probably 300-500lbs heavier, so it needs more power..
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