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Buick Regal GS

The current generation Chevrolet Malibu is available with I4 and V6 engines

The 2011 Kia Optima SX (pictured above) like its Hyundai Sonata relative will only be available with four-cylinder engines
CAFE leads to engine downsizing for GM

Manufacturers are preparing for upcoming CAFE changes which will require corporate fleets to average 34.1 mpg by 2016. As a result, a number of auto manufactures are turning to direct injection, turbocharging, hybrid technology, and full electrics to boost their fleet fuel economy.

General Motors is taking a big step, according to GM Inside News, to improve the fuel economy of its bread and butter midsize sedans. The next generation Chevrolet Malibu (due out as a 2012 model) will reportedly only be available with four-cylinder engines.

The current generation Malibu is available with a four-cylinder base engine and an optional six-cylinder engine like most other midsize sedans on the market. It's likely, however, that the next Malibu will use two new four-cylinder engines featuring direct injection technology -- the base engine will be normally aspirated while the uprated motor will be turbocharged.

GM already uses this approach with the new 2011 Buick Regal. The base Regal is available with a 2.4-liter four-cylinder engine producing 182 hp and 172 lb-ft of torque. An optional 2.0-liter turbo four-cylinder engine producing 220 hp and 258 lb-ft of torque will be made available later in the model year. An even more potent Regal GS will come later next year with an uprated turbo four producing 250+ hp.

Another manufacturer that is going four-cylinder-only is Hyundai (along with its accompanying Kia brand). The 2010 Sonata is currently only available with a 2.4-liter four-cylinder engine (24/35 mpg). The 2011 Sonata will be available with a 2.0-liter turbo four cylinder which outpowers and outgrunts the optional V6s in other midsize sedans while delivering 22 mpg in the city and 34 mpg on the highway. Both powertrains will also make their way into the upcoming 2011 Kia Optima.

Toyota's Camry and Honda's Accord are both due for complete redesigns within the next two years, so it would be interesting to see if they too go for a top to bottom four-cylinder engine lineup.



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RE: Sounds almost too good to be true...
By YashBudini on 9/1/2010 12:42:12 AM , Rating: 2
quote:
The upcoming 2.2 liter diesel engine for the Mazda6 has 173HP, but more torque, at 310lbft. Gets 31-33city and 43 highway. Uses the small/large turbo approach to work better than the variable geometry.

Ah, I love the smell of diesel fuel in the morning.

(Really?)

No. Not in the morning. Not ever.

Not the sounds either.


RE: Sounds almost too good to be true...
By sprockkets on 9/1/2010 9:39:52 AM , Rating: 2
Doesn't even sound like a diesel. C&D tested it already. Has a high RPM limit for a diesel too. It's coming to the US for the poster above me.


RE: Sounds almost too good to be true...
By Spuke on 9/1/2010 12:09:19 PM , Rating: 2
quote:
It's coming to the US for the poster above me.
I'll believe it when it's at the dealership. Sorry, I've heard WAY too many promises of diesel (Accord diesel anyone?) here in the US with only a VERY few actual cars showing up.


RE: Sounds almost too good to be true...
By FITCamaro on 9/1/2010 12:53:44 PM , Rating: 2
I'd be interested in a Mazda 6 with 310 lb ft. I'm sure you can turn up the boost to get the horsepower well over 200 too and around 500 lb ft. Of course you'll have torque steer like trying to use a fat girl in a wheelbarrow race.

Unless a miracle happened and they offered it in RWD.


By Keeir on 9/1/2010 4:18:01 PM , Rating: 2
I'd be even more interested in a Mazda3 with that Diesel. If the values reported for the 6 in the article are accurate, I am thinking 35/48 MPG, Sub 8 sec (See VWs claim of 8.6 for a 140 HP Diesel Golf) acceleration when using a manual... and a hatch as a cherry on top.


RE: Sounds almost too good to be true...
By sprockkets on 9/1/2010 3:52:11 PM , Rating: 2
Their diesel doesn't require any urea injection either to meet our tough emission standards. They said they plan on using it in 2012

http://www.caranddriver.com/news/car/10q3/mazda_sk...

Still skeptical? I'm sure for good reason.


By Spuke on 9/4/2010 7:06:00 PM , Rating: 1
quote:
http://www.caranddriver.com/news/car/10q3/mazda_sk...
Good God!!! 14:1 compression in a street car (too bad the US version is limited to 13:1)!!! Super long 4-2-1 header! Roller rockers. LOL! This is race car sh!t!!! And direct injection. Wow! It's about time big dick engineering got to the consumer market. That's going to be a monster of an engine. Can't wait to see some 10,000 rpm Mazda's in the aftermarket.

quote:
Still skeptical? I'm sure for good reason.
Yes, but impressed none the less.


RE: Sounds almost too good to be true...
By FITCamaro on 9/1/2010 12:55:03 PM , Rating: 2
That's because you're ignorant of modern diesels which don't smell or make large amounts of noise. Except for Ford's school bus diesels in the F250 and up.


RE: Sounds almost too good to be true...
By Spuke on 9/1/2010 12:58:41 PM , Rating: 2
quote:
Except for Ford's school bus diesels in the F250 and up.
Not anymore on those either.


RE: Sounds almost too good to be true...
By FITCamaro on 9/1/2010 1:08:52 PM , Rating: 3
Haven't really heard the brand new ones. Just know the ones in the parking lot at work that are only 2-3 years old sound like a school bus. Doesn't mean they aren't good engines. Just loud.


By Spuke on 9/1/2010 9:04:33 PM , Rating: 2
quote:
Doesn't mean they aren't good engines. Just loud.
I didn't imply you thought they were bad engines. Just saying that they aren't loud anymore. Besides, I like the diesel clatter. Apparently, I'm not alone in that either. But I would take one of the new Ford's in a heartbeat. 400hp and 800lb-ft! I could tow my house with that with my Solstice in the garage!!!


"Well, there may be a reason why they call them 'Mac' trucks! Windows machines will not be trucks." -- Microsoft CEO Steve Ballmer














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