regfootball

GM expects 40% mileage boost on big SUV hybrids

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http://www.usatoday.com/money/autos/2007-0...m-hybrids_N.htm

General Motors (GM) said Tuesday that it now expects 40% better fuel economy in city driving from the gasoline-electric hybrid versions of its full-size SUVs than their gasoline-only counterparts, giving the hybrid Chevrolet Tahoes and GMC Yukons 19 or 20 miles a gallon in stop-and-go driving.

That's up from earlier forecasts of a 25% improvement and would give the big SUVs better mileage than some mid- and full-size, gasoline-power family sedans. It also would be better than so-called crossover SUVs that are stealing sales from truck-based SUVs such as Tahoe because crossovers typically use less fuel.

KILLER!!!!!!!!!!

Edited by regfootball
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Game - set - match. I hope they do not suffer on the highway like the other hybrids do.

I am seriously in the market for one of these. I love the lack of a roof rack on the roof and the aero package on the Hybrid. I have been thinking about this truck since they were announced, and cannot wait to get one.

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Keep in mind these babies get the well needed 6spd. automatics. Eat that Toyota, good fuel economy from the vehicles that need it the most. Good idea. I want a Silverado version and Suburban one to pop up soon.

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Are there any plans for hybrid Lambdas? If they could get 30mpg out of a full size SUV, that would be a huge marketing point.

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Are there any plans for hybrid Lambdas?

From the article

GM will offer it next year on Cadillac Escalade, then on Chevy and GMC full-size pickups. Saturn models will get a version later.

I assume that this would be the Saturn Lambda?

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Game - set - match. I hope they do not suffer on the highway like the other hybrids do.

They shouldn't suffer on the highway like others do, that's the whole point of dual-stage. These will mostly run on 4 cylinders while cruising and be able to instantly transfer back to 8 when going up hill or passing.

I assume that this would be the Saturn Lambda?

I've heard a lot of rumblings about this and other platforms. A little bit of speculation, but the feel I get is that GM is going to put them on the 900s and Lambda and see how they sell and then decide on other structures. With that in mind, I've heard loose information about dual-stage versions of Zeta, GMT360 replacement and even Theta.
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I just hope this is a real world driving 40% gain and not a Prius gain.

Toyota has gotten a free pass on the Prius milage as most owners never get the high milage due to the fact you have to feather the pedal.

If GM can get 40% gain and dive it like a truck should be driven this will be great. But if GM comes up short on milage the press will ream them unlike the pass Toyota got.

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Don't forget that the mileage gain decreases with the size of the vehicle the technology is applied to. Kudos to GM for putting it where it will do the most good first. :thumbsup:

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I just hope this is a real world driving 40% gain and not a Prius gain.

Toyota has gotten a free pass on the Prius milage as most owners never get the high milage due to the fact you have to feather the pedal.

If GM can get 40% gain and dive it like a truck should be driven this will be great. But if GM comes up short on milage the press will ream them unlike the pass Toyota got.

The "real-world" gains for the Prius are 40%. It's just that the old-EPA gain for the Prius was 100%.

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20 MPG makes it on par with the LS600hL! :lol:

Imagine an Escalade Hybrid that "gets better fuel economy than any full-size luxury vehicle."

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20 MPG makes it on par with the LS600hL! :lol:

Imagine an Escalade Hybrid that "gets better fuel economy than any full-size luxury vehicle."

Especially when the Escalade has as much power, is a bigger vehicle, and is much less aerodynamic. Not to mention will cost thousands less.
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Keep in mind these babies get the well needed 6spd. automatics. Eat that Toyota, good fuel economy from the vehicles that need it the most. Good idea. I want a Silverado version and Suburban one to pop up soon.

I'm not sure these are 6-speeds. I'm almost positive they are 4s.

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I'm not sure these are 6-speeds. I'm almost positive they are 4s.

The 6speed is part of the 2 mode hybrid package

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The "real-world" gains for the Prius are 40%. It's just that the old-EPA gain for the Prius was 100%.

What I am saying is the claimed high mileage that Toyota still calims and if you drive the Prius as a normaL car you only see 32 MPG VS their 40+ MPG claim.

We had a reporter here in town that did a story on the Prius she owned and how it only delivers if you feather the gas and hold up traffic.

These same problems of less than promised milage is seconded by two other owners I know. The Fact is the Prius is not the high milage champ it claioms to be if driven like a normal car.

It is important under most normal conditions that GM delivers the MPG as promised. I know GM is good on thier word on HP in most of thier new cars unlike many other companies I just hope they do the same and only prommise the milage most really will see. If it gets more all the better.

Under promise and over deliver and no one ever complains.

Edited by hyperv6
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What I am saying is the claimed high mileage that Toyota still calims and if you drive the Prius as a normaL car you only see 32 MPG VS their 40+ MPG claim.

Whatever the real world Prius mileage is, it's important to compare it to some small 1.5 l sedan like the Echo or perhaps the even larger more powerful Corolla, not the Camry or other larger more fuel thirsty car. Slap some low rolling resistance tires on an old Echo and you got a good comparison.

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You mean 4 fixed gears plus the 2 modes?

GM to Introduce Two-Mode Hybrid Suvs for 2008 Model Year

umm... its a weapon later on down the road...

if 40% is possible with this powertrain and the 6 speed is capable of another 5-15% increase depending on application... GM will be able to see some major gains in fuel ecconomy...

but if u think about it... if GM is marketing the hybrid expense at 10k... is it really worth it... maybe....

but gm will sell some, and make a killing i think

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lambda hybrid would be a great people mover solution.

i keep asking if lambda is capable of replacing the chevy uplander... that way it is a different style of vehicle... yet it still uses the same archatecture

and if it got 40% gains too...

you know if those gains are seen in the big vehicles... thats the bare minimum of the system...

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What I am saying is the claimed high mileage that Toyota still calims and if you drive the Prius as a normaL car you only see 32 MPG VS their 40+ MPG claim.

We had a reporter here in town that did a story on the Prius she owned and how it only delivers if you feather the gas and hold up traffic.

These same problems of less than promised milage is seconded by two other owners I know. The Fact is the Prius is not the high milage champ it claioms to be if driven like a normal car.

It is important under most normal conditions that GM delivers the MPG as promised. I know GM is good on thier word on HP in most of thier new cars unlike many other companies I just hope they do the same and only prommise the milage most really will see. If it gets more all the better.

Under promise and over deliver and no one ever complains.

The 2008 procedures more accurately reflect real-world economy, whether it's for Toyota or GM. The '08 estimates for the Prius are 48/45, which coincide with the reported averages at fueleconomy.gov, greenhybrid.com, and countless magazine long-term tests.

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umm... its a weapon later on down the road...

if 40% is possible with this powertrain and the 6 speed is capable of another 5-15% increase depending on application... GM will be able to see some major gains in fuel ecconomy...

but if u think about it... if GM is marketing the hybrid expense at 10k... is it really worth it... maybe....

but gm will sell some, and make a killing i think

What is a weapon later on down the road?

Is the 2-mode a 4 speed? That's what I want to know. Someone said its a 6speed. I thought my link proved they were 4 speeds. What am I missing?

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And about the Saturn 2-mode model. Isn't it the VUE? I recall GM saying it would be the first with the FWD 2-mode transmission.

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That is good news, a 40% gain is probably need to get people to keep buying big trucks. Even with a 40% gain and 20 mpg , I think a lot of people will still opt for smaller like the Highlander, and CRV and Escape, unless they absolutely need 7-8 seats and towing ability. Oil just went over $77 a barrel, gas mileage is so important now to most buyers. The Lambdas are still really big and heavy, the Edge, Escape and CRV seem to be what are hot.

I'd like to see the 2 mode on some smaller vehicles where they can really maximize economy and make some 30 and 40 mpg cars. Perhaps even 50 mpg. Just building a 50 mpg car helps image, look at the Prius, which is one of 3 Toyotas in the top 8 in sales.

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What is a weapon later on down the road?

Is the 2-mode a 4 speed? That's what I want to know. Someone said its a 6speed. I thought my link proved they were 4 speeds. What am I missing?

if it is indeed a 4 speed... adding a six speed a couple years down the road will provide it additional ecconomy...

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