Cadillac ATS 2.5 vs E30 BMW M3 2.3L?

Can you buy a Cadillac ATS 2.5L and imagine you are getting a modern E30 M3?  How does the upcoming Cadillac ATS compare to the original 1986 E30 BMW M3?  The Cadillac ATS 2.5L is the standard version of the upcoming ATS sports sedan.  The E30 BMW M3 was the original M3, created in 1986 to race against the Mercedes W201 190E (1982-1993).

BMW M3 E30

BMW M3 E30

The first M3 was something of a parts bin special, with bits of this BMW and that BMW to form an interesting new street fighter.  It used the 4-cylinder engine from the 320 of the time, reinforced, and with valvetrain from the M1 supercar.  The engine was designated S14.  The 2.3L E30 M3 four-cylinder produced 192 hp at 6750 rpm and 177 lb ft of torque at 3750 rpm.

E30 BMW M3 Vehicle Dimensions
  • weight 2866 lbs
  • wheelbase 101.0 in
  • front track 55.6 in
  • rear track 56.1 in
  • length 171.1 in
  • width 66.1 in
  • height 53.9 in

The all-new Cadillac ATS navigates through the turns and straightaways at Atlanta Motorsports Park during performance testing Tuesday, May 8, 2012 in Dawsonville, Georgia. The Cadillac ATS is engineered to be the lightest compact luxury sports sedan, reducing weight through the use of advanced materials – but not at the expense of performance. (Photo by Sam Sharpe for Cadillac)

Cadillac ATS 2.5L

The Cadillac ATS 2.5L utilizes the new for 2013 GM 2.5L four cylinder.  It produces 202 hp at 6300 rpm and 191 lb-ft of torque at 4400 rpm.  Very light for a Cadillac, but bearing the improved safety and chassis rigidity of a modern car, the Cadillac ATS is heavier than the 1986 E30 M3.  The new Cadillac ATS weighs in at 3,315 lbs, or 449 lbs more than the first gen BMW M3.

Cadillac ATS 2.5L Vehicle Dimensions
  • weight 3315 lbs
  • wheelbase 109.3 in
  • front track 59.5 in
  • rear track 60.9 in
  • length 182.8 in
  • width 71.1 in
  • height 55.9 in

Performance:

The E30 M3 could do 0–62 mph: 6.9 s. Top Speed: 146 mph

The Cadillac ATS 2.5L is projected for 0-60: 7.5 s. Top Speed: not announced.  However, since we know it comes with P225/45R17 90H all-season tires then expect a speed limiter at 128-130 mph.  Advantage: BMW

Cornering:

Skidpad numbers for the BMW are uncertain, but likely 0.87g or so.

Skidpad numbers for the ATS 2.5L are uncertain, but likely 0.85g or so.

Advantage: uncertain

Price:

Tip-top condition 50K mile M3: $37K+

Brand new Cadillac 2.5L: $34K+

Advantage: Cadillac

Miscellaneous Other non-performance stuff:

Luxury, features, interior space, MPG, etc all advantage Cadillac.

Appearance a matter of taste.

2.5L Cadillac ATS "LCV" Engine Dyno

2.5L Cadillac ATS “LCV” Engine Dyno

 Summary

Okay, Bruce, Why did you slog through this comparison at all?

It occurs to me that although the 2L Turbo Four and 3.6L V6 versions of the Cadillac ATS will get the enthusiast attention, and the 2.5L Four regarded as ‘to be avoided’, the standard 202 hp four may give an experience more like the original M3.

Yes although the ATS is physically bigger than the E30 M3, it will have similar performance, and may be regarded to have similar charms.  It will be easier to find a nice, unmolested example, and easier to keep up.  But just as much fun on track days.

Cadillac ATS available in late August

Cadillac ATS available in late August according to Cadillac.  Cadillac is sharing some new photos with the message,

Sun sets on Patagonia. The all-new ATS, available late August.

We knew the Cadillac ATS was due at the end of the Summer, and August sounds good for when that might be.  Here was a previous example mention:

ATS goes on sale this summer, but already the new sport sedan is positively impacting Lansing, Mich., where more than 410 new employees have been hired at Cadillac’s Lansing Grand River plant where the ATS will be assembled. A total of 600 new employees are expected to be part of Cadillac’s $190 million investment in the facility.

But now have an update: the Cadillac ATS available in late August.

Gallery of Cadillac ATS Tour shots:


Along with the recently available Cadillac XTS, the Cadillac ATS is very important to Cadillac. The ATS will compete directly with the BMW 3-Series and Mercedes C Series.

At under 3,400 lbs, new power trains, new Cadillac User Experience (CUE), the Cadillac ATS promises to bring new levels of Sport and Luxury to the Sports Luxury class.


The Cadillac ATS is already highly anticipated among auto enthusiasts.  The ATS brings a new level of power to weight and performance at a entry-level price for Cadillac.

Quick pricing summary:

  • Standard 2.5L Four: $33,990
  • Turbo 2L: $35,795
  • 3.6L V6: $42,090

After the Cadillac ATS arrives in late August we should hear more about the 2014 Cadillac CTS redesign, as well as Escalade and ELR.

Even with the Cadillac ATS available in late August it may arrive to some dealers in early-to-mid September.  That is late for new graduate sales as a first college car, and it misses the fun in the sun summer sales.

I am looking forward to the Cadillac ATS, especially in a V-Series variant.

Cadillac ATS 2L Turbo LTG promises performance

Cadillac ATS 2L Turbo LTG -- 2013 Ecotec 2.0L I-4 VVT DI Turbo

Cadillac ATS 2L Turbo LTG — 2013 Ecotec 2.0L I-4 VVT DI Turbo

Cadillac ATS 2L Turbo LTG Four Cylinder mid-line engine specs for the Cadillac ATS:

LTG 2.0L VVT TURBO ENGINE SPECIFICATIONS
Engine type Dual Overhead Camshaft
Bore and stroke, in.(cm.) 3.386 x 3.386 (8.60 x 8.60)
Horsepower 272@5500 rpm
Kilowatts(kW) 202.91@5500 rpm
Torque (lb.-ft.) 260@1700-5500 rpm
Newton – Meters (N-m) 351.00@1700-5500 rpm

Here is the engine dyno graph:

Cadillac ATS 2L Turbo LTG

Cadillac ATS 2L Turbo (LTG)

Much like the N20 Turbo Four in the BMW 328i, the ATS’ 2L Turbo LTG will run out of breath at 5500 rpm.  The BMW pulls a peak of around 222 whp at 5500 rpm, according to an Automobile dyno test.  The 328’s N20 is under-rated by BMW as a 240 hp engine.

So although the Cadillac 2L Turbo is SAE rated at 272 hp and the BMW engine at 240 hp, the BMW is likely putting out around the same power as the Cadillac engine.

Cadillac ATS 2L Turbo LTG

Cadillac ATS 2L Turbo (LTG) [click to zoom, back to return]


Cadillac suggests the ATS 2L turbo will hit 0-60 mph in 5.7 sec for the auto, or 5.8 sec for the manual RWD ATS.  For turbo engines, automatics are often quicker than manuals because it is easier for the turbo to stay on spool through the auto shift.

Cadillac ATS 2L Turbo LTG -- 2013 Ecotec 2.0L I-4 VVT DI Turbo

Cadillac ATS 2L Turbo LTG — 2013 Ecotec 2.0L I-4 VVT DI Turbo

GM has shown with earlier 2L Turbos (in the Kappa cars) that they are easily tunable for more boost and reliable power.  The GM Stage 1 power kit for the LNF Turbo engines raised output from 260 hp (194 kW) and 260 lb.-ft. (352 Nm) to 290 hp (216 kW) and up to a robust 340 lb.-ft. (461 Nm) manual trans, or 325 lb.-ft auto.  The kit had no effect on warranty, was dealer installed, and was 50 state legal.  Hopefully GM will offer a similar boost for the new LTG engines.

The 2012 Buick Regal GS uses an LHU engine, for 270 hp and 295 lb. ft of torque:

Applications: Horsepower: hp ( kw )
Buick Regal CXL 220 hp (164kW) @ 5300 RPM SAE CERTIFIED
Buick Regal GS 270 hp (201kW) @ 5300 RPM SAE CERTIFIED
Applications: Torque: lb-ft. ( Nm )
Buick Regal CXL 260 lb-ft (353Nm) @ 2000 RPM SAE CERTIFIED
Buick Regal GS 295 lb-ft (400Nm) @ 2400 RPM SAE CERTIFIED

The newer Cadillac LTG engine is tuned to provide torque at a lower 1500 RPM and a bit higher 5500 rpm on the top end, at the cost of less peak torque at 260 for the Cadillac vs 295 for the Buick.

I predict that there will be some very nice gains from tuning these engines.