ATS 2.0T vs 328i vs IS250 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

rayhawk · 05-13-2013, 11:45 AM

http://www.edmunds.com/bmw/3-series/...ison-test.html

Nice comparison, I just don't understand how the ATS is so much slower than the 328i? 4 mph slower and .7s slower in the 1/4? That isn't even close.

matt55 · 05-13-2013, 01:55 PM

Some thing is off with the et #'s. The bmw gained 6/10 sec going to a 1foot roll out where the other two cars gained 1-2/10 sec .
Traps, look more in line .

KMPrenger · 05-13-2013, 02:17 PM

Quote:

Originally Posted by matt55

Some thing is off with the et #'s. The bmw gained 6/10 sec going to a 1foot roll out where the other two cars gained 1-2/10 sec .
Traps, look more in line .

Yep something is off. Either that, or the BMW is seriously under rated in power. Sorry, but 240HP/255TQ does not equate to a 13.8 second 1/4 mile car in a sedan that weighs 3,450 lbs. I have read BMW had underrated power in some of their other sedans so maybe that applies here?

FYI, I just checked car and driver, and they report a 14.2 second 1/4 mile time for this car....a big difference. Even so, that sounds exceptional for the power rating.

Stew · 05-13-2013, 02:27 PM

Quote:

Originally Posted by KMPrenger

Yep something is off. Either that, or the BMW is seriously under rated in power. Sorry, but 240HP/255TQ does not equate to a 13.8 second 1/4 mile car in a sedan that weighs 3,450 lbs. I have read BMW had underrated power in some of their other sedans so maybe that applies here?

FYI, I just checked car and driver, and they report a 14.2 second 1/4 mile time for this car....a big difference. Even so, that sounds exceptional for the power rating.

Everything shows they are underrated. I am guessing the Car and Driver car was a manual. inside line got 14.1 from BMW manual which is right in line. The one tested here had the excellent 8 speed automatic. it doesn't help that the Turbo ATS is really a turd for it's power rating in a straight line.

King T · 05-13-2013, 08:14 PM

Quote:

Originally Posted by rayhawk

I just don't understand how the ATS is so much slower than the 328i? 4 mph slower and .7s slower in the 1/4? That isn't even close.

Quote:

Originally Posted by KMPrenger

Yep something is off. Either that, or the BMW is seriously under rated in power. Sorry, but 240HP/255TQ does not equate to a 13.8 second 1/4 mile car in a sedan that weighs 3,450 lbs. I have read BMW had underrated power in some of their other sedans so maybe that applies here?

Yes it is underrated. Look at this dyno

The 2.0L is rated at 240hp/260 lbs-ft from the factory, but it dynoed 240 hp/257 lbs-ft at the wheels! Factor in 11-15% drivetrain loss and this engine is really closer to 270 hp-280hp at the flywheel.

The Cadillac ATS dynoed 239hp/252 lbs-ft at the wheels, more accurate of the SAE ratings.
2013 Cadillac ATS: Dyno Tested
http://www.edmunds.com/car-reviews/t...illac-ats.html

The reason some say that BMW underrates their engines is because many countries in Europe tax based on max hp.

King T · 05-13-2013, 08:16 PM

Motor Trend says in this comparison that the BMW has more power than what is rated, and that the biggest difference between the ATS and 328 is gearing that allows the BMW to be quicker

MEDISIN · 05-13-2013, 08:50 PM

The only thing holding the ATS back is its transmissions and gearing. The manual gets knocked for feel and ease of throw while the auto gets knocked for sluggish shifts and 2 fewer gears vs the bimmer. Curious to see how the CTS does with the new 8 speed.

LOWDOWN · 05-13-2013, 08:51 PM

...or, once again, a well-sorted (read: tuned) "ringer" sent out from the press pool...

13's is STOUT...for a basic-engined vehicle... "Your times may vary..."

rayhawk · 05-14-2013, 07:32 AM

Something is definitely strange with the numbers on the BMW. I have seen plenty of 328i's on the street, and none of them were capable of running 13's.

Stew · 05-14-2013, 09:19 AM

Quote:

Originally Posted by rayhawk

Something is definitely strange with the numbers on the BMW. I have seen plenty of 328i's on the street, and none of them were capable of running 13's.

Year is VERY important here, this is a new motor for 12 or 13. Previous 328s had a MUCH less powerful NA v6 and were a LOT slower.

FenwickHockey65 · 05-14-2013, 10:34 AM

Quote:

Originally Posted by MEDISIN

The only thing holding the ATS back is its transmissions and gearing. The manual gets knocked for feel and ease of throw while the auto gets knocked for sluggish shifts and 2 fewer gears vs the bimmer. Curious to see how the CTS does with the new 8 speed.

ATS manual was revamped shortly after production started. The problems are nonexistent now.

05-13-2013, 11:45 AM	#1
rayhawk Drives: Camaro SS Join Date: Aug 2008 Location: Miami Posts: 1,060 View My Garage	ATS 2.0T vs 328i vs IS250 http://www.edmunds.com/bmw/3-series/...ison-test.html Nice comparison, I just don't understand how the ATS is so much slower than the 328i? 4 mph slower and .7s slower in the 1/4? That isn't even close. __________________

05-13-2013, 01:55 PM	#2
matt55 Drives: CTS-V Join Date: Aug 2008 Location: Raleigh NC Posts: 1,069	Some thing is off with the et #'s. The bmw gained 6/10 sec going to a 1foot roll out where the other two cars gained 1-2/10 sec . Traps, look more in line . __________________ 10.8@130.8 610 whp, CAI, 2.5, E85, id850 on street tires.

05-13-2013, 08:50 PM	#7
MEDISIN Drives: 2011 CTS-V Sedan Join Date: May 2009 Location: Chapel Hill, NC Posts: 1,505 View My Garage	The only thing holding the ATS back is its transmissions and gearing. The manual gets knocked for feel and ease of throw while the auto gets knocked for sluggish shifts and 2 fewer gears vs the bimmer. Curious to see how the CTS does with the new 8 speed. __________________ 2012 - Present: 2011 CTS-V Sedan, A6, Airaid, Zmax TB and Tune by R.P.M. = 535 hp/503 lb-ft. 2009 - 2012: 2010 2SS RS IBM M6, MGW Shifter, BMR Trailing Arms/Tunnel Brace, Roto-Fab CAI, VMAX Ported TB, Kooks 6511-Complete (Headers, X-Pipe, Mufflers), dyno tuned by R.P.M. = 415 hp/412 lb-ft. "Not giving a f^k is truly the greatest luxury, and no luxury car gives fewer f^k's than a CTS-V." - Matt Hardigree

05-14-2013, 07:32 AM	#9
rayhawk Drives: Camaro SS Join Date: Aug 2008 Location: Miami Posts: 1,060 View My Garage	Something is definitely strange with the numbers on the BMW. I have seen plenty of 328i's on the street, and none of them were capable of running 13's. __________________

05-13-2013, 08:51 PM	#8
LOWDOWN Downright Upright Drives: Daily Join Date: Apr 2009 Location: Cruisin'... Posts: 4,145	...or, once again, a well-sorted (read: tuned) "ringer" sent out from the press pool... 13's is STOUT...for a basic-engined vehicle... "Your times may vary..."