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Sonata Hybrid

Sonata Turbo
Hyundai drops a few bombs on the midsize sedan market

Hyundai is continuing its steady stream of product updates with two more iterations of the all-new Sonata. We've already discussed the Sonata on a few occasions here on DailyTech, but Hyundai today released official details on both the new Sonata Hybrid and the Sonata Turbo.

First up is the new Sonata Hybrid. The new hybrid features revised front and rear bodywork to make it stand apart from the standard Sonata models. The body revisions also help the Sonata Hybrid to better slip through the air.

Most importantly, however, is the new Hyundai "Hybrid Blue Drive" powertrain. A 169 hp, 2.4-liter four cylinder engine is paired with a 40 hp electric motor and a lithium-ion battery pack. The Sonata Hybrid eschews the continuously variable transmission (CVT) that is typically used in hybrid vehicles and instead uses a more traditional six-speed automatic transmission.

When all is said and done, the 3,457-pound Sonata Hybrid (263 pounds lighter than the Ford Fusion Hybrid) is able to achieve city fuel economy of 37 mpg and highway fuel economy of 39 mpg. For comparison, the Ford Fusion Hybrid achieves figures of 41 mpg and 36 mpg respectively.

The other big news from Hyundai is the announcement of the Sonata Turbo. We've previously discussed that Hyundai has done away with a V6 engine option for the all-new Sonata. Following the announcement of Sonata Turbo, we can see why. The Sonata Turbo uses a new 2.0-liter four-cylinder engine which develops an impressive 274 hp and 269 lb-ft of torque (maximum torque is achieved at a low 1,800 rpm) -- all while using regular unleaded gasoline.

Even more embarrassing for its V6-powered competitors like Toyota Camry, Ford Fusion, and Honda Accord is the fact that the tiny little turbo four surpasses all of them in horsepower and torque figures. The Sonata Turbo will also delivery fuel economy of 22 mpg city and 34 mpg highway -- not far off from the standard 198 hp Sonata. For comparison, the closest V6 competitor to the Sonata Turbo in fuel economy is the Honda Accord V6 which is rated at 19 mpg city and 29 mpg highway.

With these two announcements, Hyundai appears to be having no problem at all moving towards the governments goal of increased fuel efficiency for passenger vehicles.



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RE: Turbo powerplant
By Brandon Hill (blog) on 3/31/2010 4:41:13 PM , Rating: 5
Why do the specs seem unbelievable? GM's direct injection 2.0-liter Ecotec four-banger produces 260/260 and has been in service for at least two years IIRC.

It's been used in the Solstice GXP, Saturn Sky Redline, Chevy HHR, and Cobalt SS


RE: Turbo powerplant
By Alexvrb on 3/31/2010 8:09:11 PM , Rating: 2
It's been in use starting with the '07 Solstice and Sky. I'm hoping that in addition to the two fuel-miserly engines currently planned for the Cruze, they'll also produce a Cruze SS with an improved engine based on the LNF.

I am not sure if this new Hyundai has as good of a torque curve, but its basic stats surely seem impressive for stock. The LNF torque "curve" is completely flat, reaching peak torque at roughly 1800 and remaining at peak torque until almost redline.


RE: Turbo powerplant
By Spuke on 3/31/2010 11:47:42 PM , Rating: 2
The LNF is also in the Cobalt SS and HHR SS.

quote:
The LNF torque "curve" is completely flat, reaching peak torque at roughly 1800 and remaining at peak torque until almost redline.
In reality, the LNF makes peak torque till about 5800 rpm where it drops (along with hp) dramatically. It's an awesome engine and can go well into the 400 wheel hp range on the stock engine. There aren't too many (if any) people into the 500 wheel hp range on the LNF but it's speculated that it can go somewhere into the 500's where I believe the pistons become the weak link. The engine maybe more fuel limited than anything and no one's reached the stock fuel systems limits yet (at least not that I know of). BTW, I own a Solstice GXP. :)

I think you'll see more manufacturers following Hyundai's lead here unless someone can match these numbers with a DI V6 (not seen that yet). Personally, I'll take turbo's over displacement any day.


RE: Turbo powerplant
By Alexvrb on 4/1/2010 8:21:14 PM , Rating: 2
I was pointing out when it was first deployed (2007), since he wasn't aware it has been out for a little over 3 years. It didn't show up on the Cobalt and HHR platforms until 2008 models.

Regarding torque, it holds on to max torque until NEAR redline, like I said. 5800RPM is up near the end of the band on a stock LNF, they're torque and power monsters, not RPM queens. Also, given how hard they've been able to push this aggressive DI design, I highly doubt fuel is going to be holding it back until you hit some serious numbers.

Regarding DI V6s, both GM and Ford's DI V6s do pretty well in that regard. Of course, they'd do even better turbo'd...


RE: Turbo powerplant
By Spuke on 4/2/2010 12:42:00 PM , Rating: 2
quote:
I was pointing out when it was first deployed (2007), since he wasn't aware it has been out for a little over 3 years.
I know, I'm just adding some more info.

quote:
Regarding torque, it holds on to max torque until NEAR redline, like I said. 5800RPM is up near the end of the band on a stock LNF, they're torque and power monsters, not RPM queens.
I know, I own one. :) You can get an upgrade from GM that does NOT void your warranty AND is CARB legal that ups power and torque to 290 hp and 340 lb-ft or torque (325 lb-ft for the autos and 315 lb-ft for the HHR SS).

Not disagreeing with you, just adding to the DI goodness.


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