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Hyundai raises MPG bar with new Sonata hybrid, turbo

By | April 5, 2010, 7:58 AM PDT

The car maker that’s impressing me these days is Hyundai. The company ranked fourth in overall reliability in Consumer Reports 2010 ratings out last month and its Elantra tops the best small sedans for the second year in a row.

But how Hyundai ranks on paper among its peers is not what I’m here to talk about today. Rather, two model introductions last Wednesday at the New York Auto Show caught my eye. Both promise to raise the bar on fuel efficiency and power in the hotly competitive family sedan category.

credit: Hyundai

credit: Hyundai

The new 2.0T has a 274-horsepower turbocharged 4-cylinder power plant that gets 22 MPG city and 34 highway and burns regular gas. Typically, turbos require premium fuel, which for some is a deal breaker and for sure, irritating.

The other model is a Sonata hybrid that has the smallest differential I’ve seen yet between city and highway driving - 37 city and 39 highway.

Now the Sonata, which just underwent a complete makeover that has won  praise from the auto bloggers, is considered a family sedan, meaning it can comfortably seat five.  It’s not some barebones econo-box trying to eke out high MPG at the expense of substance and polish.

By comparison, the Camry hybrid gets 31 city and 34 highway and has no vehicle stability control option (the National Highway Traffic Safety Administration has urged every car maker to make ESC standard). All Sonatas come with ESC and there’s no reason to believe the forthcoming hybrid will the exception.

Sonata hybrid. credit: Hyundai

Sonata hybrid. credit: Hyundai

Sonata’s substantially better mileage which is just on paper at this point, comes from several reported innovations. Hyundai claims its lithium polymer battery runs cooler and is “shape-able for optimum packaging.” And a story in USA Today says the Sonata hybrid will be 263 pounds lighter than a Ford Fusion hybrid and has more efficient electric motor direct drive to the wheels instead of to a set of once-removed-from-the-road gears.

It should be noted that the Ford Fusion hybrid which starts at $28,000 gets 36 city and 41 highway. Fusion’s better mileage  virtually assures the Sonata hybrid will be aggressively priced.

Power and torque junkies with an eye for economizing might consider the 2.0T.

With this car, Hyundai just may have trumped Honda’s Accord lineup. With 4 cylinders, the Accord does a touch worse on mileage at 21 city and 31 highway, but delivers a measly 190 horsepower by comparison. The Chevy Malibu claims to be the 4-cylinder family sedan leader in MPG at 22 city and 33 highway, but appears to have just been trumped by the 2011 4-cylinder Sonata at 22 city and 35 highway.

The 6-cylinder Accord delivers 271 horsepower, but far less efficiently at 19 city and 28 highway.

The new Hyundai models will reportedly be out at the end of the year and much will depend on price, sex appeal, drive-ability and reliability over time. And not every car writer is as sanguine as me. At least not yet. Says NY Times auto blogger Jerry Garrett:

Is it real? Yes, but in the “believe-it-when-I-drive-it” category. We will wait until it arrives in showrooms in late 2010 to do anything but quote the Hyundai-supplied power claims. What they didn’t say: The Sonata will use 4-cylinder engines of somewhat questionable provenance to compete in classes dominated by those offering V-6s.”

Fair enough, but perhaps because I’ve owned a Hyundai, I am confident the Korean auto maker will stand and deliver. My 2003 Elantra was incredibly reliable until I sold it last month with 100k on the odometer. The fit and trim wasn’t was the greatest nor did I ever expect it to be. I loved that little car.

I think Hyundai is raising the bar while no one is really looking.

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John Dodge

About John Dodge

John Dodge was a contributing editor for SmartPlanet from 2009 to 2010.

John Dodge

John Dodge

Contributing Editor, Technology

John Dodge has written for the Wall Street Journal, Boston Globe, PC Week (now eWeek), EDN, Design News, Electronic Business, Bio-IT World, Health-IT World, Lowell Sun, Haverhill Gazette and Newburyport Daily News. He is based in Massachusetts.

Follow him on Twitter.

John Dodge

John Dodge

John Dodge prides himself on completely independent journalism. His opinions, observations and reporting are not influenced by any financial holdings. He holds no shares in computer, electronics, software or Internet companies. He also has no business affiliations with organizations except with those for which he creates content as a freelancer.

He writes for SmartPlanet and is not an employee of CBS.

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RE: Hyundai raises MPG bar with new Sonata hybrid, turbo
Sounds like Sonata has a series powertrain instead of the parallel kludge that is is more common on cars. the railroads decided serial made more sense in the 50's. I'm surprised the automakerstook so long to figure it out.
Posted by zclayton3
6th Apr 2010
0 Votes
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Parallel Kludge?
Is that a type of transmission? Looked throughout my owner's manual and can't find where in the powertrain a kludge is located.
Posted by Legal_Beagle
6th Apr 2010
0 Votes
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Hyundai has won 'best car' since 1998
In my personal testing - the Hyundai Santa Fe, Tiburon and the Accent are
the cars that out performed the rest and won my money.

Looking forward to seeing the hybrid offering.

(previous GM Executive)
Posted by Donald.Nagy@...
6th Apr 2010
0 Votes
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RE: Hyundai raises MPG bar with new Sonata hybrid, turbo
Z. Clayton III tells us:

>Sounds like Sonata has a series
>powertrain instead of the parallel
>kludge that is is more common on
>cars. the railroads decided serial
>made more sense in the 50's. I'm
>surprised the automakerstook so
>long to figure it out.

This comes across to me as ignorance, and I'll explain why.

The familiar Diesel-electric railroad locomotive does indeed use what the auto industry calls "series hybrid" (i.e. engine drives generator, producing electricity for traction motors). But there are reasons for doing this: One, all Diesel-electric and straight electric (i.e. electric power coming from overhead wire) locomotives on the world's railroads are "all wheel drive". That's because you need all axles driven, to make full use of a locomotive's weight as an agent in enabling traction.

If you were to drive all four, or all six, axles of a locomotive mechanically, take it from me as a holder of an M.S. in Automotive Engineering, you are going to have one heck of a design headache. It is far easier to provide each axle with its own motor.

Then why use parallel hybrids for cars and light trucks? Because with a typical hybrid electric car, i.e. the Prius, only the front wheels are driven. At most, even with big highway trucks, you only have two driven axles. Therefore you don't have as big a headache driving the wheels mechanically.

Hence in cars or most trucks, the series configuration is at a competitive disadvantage for these reasons: First, efficiency. Overall drivetrain efficiency is the product of generator efficiency and traction motor efficiency. This applies to Diesel locomotives too, but like I said it would be too inconvenient mechanically to attempt parallel hybrid drive with locomotives.

Second, with series hybrid drive you have to size motor and generator to handle peak power and torque loads. You don't have this problem to as great an extent with parallel or series-parallel (as in the Prius) hybrid drives.

I don't think Hyundai would use the series configuration in their hybrid cars, owing to weight and efficiency considerations. The series configuration is being used in the Chevrolet Volt, but that's another matter I'd rather not address right now, so as to limit the length of this posting.
Posted by AlexKovnat
6th Apr 2010
0 Votes
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Parallel vs. Series
AlexKovnat - thanks for a good explanation.
As for vehicle choice, for a variety of reasons, no matter how aggressively priced the Sonata hybrid is priced, my leanings would STILL be towards the Ford Fusion.
I currently have a '97 GMC Sonoma p/u with 124,6xx miles that still runs very well. In November 2008, I traded a 2000 Olds Intrigue with about the same mileage (and all kinds of electrical problems) for a Ford Ranger p/u. Even though both trucks have V6 engines, the Ford's smaller 4 liter engine gets worse mileage than the 4.3 liter GM engine (15 vs. 18).
Go figure.
I had to go with the Ford as GM nolonger made a mid-sized p/u with a V6. The new GM/Chevy Canyon/Colorado's use an IN-LINE 5 CYLINDER. Uh, GM, how are spark plugs and wires packaged? 4, 6, or 8!! NOT FIVE!! Add to that, they down-sized the engine to a cruddy 3.9 liter and this in a TRUCK. Ford was my only choice!
Posted by JTF243@...
6th Apr 2010
0 Votes
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RE: Hyundai raises MPG bar with new Sonata hybrid, turbo
Thanks all for the comments...I have been a lifelong train fan and have
written extensively about locomotive technology. But never once did it
cross my mind that Hydunai's direct drive is like a traction motor. I
suppose it is. It'll be interesting to see where the motor(s) is
located and whether there's a drive shaft. Some concept cars have shown
motors as part of the wheel assembly. Locomotive traction motors
integrate the axle....not sure of the gearing or whether they are truly
direct drive. From this pic, I think there is intermediate gearing...

http://www.nationalrailway.com/traction_motor.asp
Posted by John Dodge
7th Apr 2010
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