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Hybrid Vehicles Chevrolet Tahoe and GMC Yukon Hybrid Article Comments - 2008 Chevrolet Tahoe First Drive and Follow-Up Test
62 messages, Last post on Jun 05, 2008 at 3:32 PM
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Article comments for First Drive: 2008 Chevrolet Tahoe Two-Mode Hybrid - Two-mode hybrids aren't exactly new. GM has had the two-mode hybrid system working in transit buses since 2003. Today, about 700 of those buses are operating in 60 cities in North America and have just been introduced in Europe. (more)
Follow-Up Test: 2008 Chevrolet Tahoe Hybrid - Bottom Line: It's better, but whether it's $9,100 better is up to you. (more)
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Replying to: stevedebi (May 14, 2007 11:11 am) Amid the looming hordes of European luxury automakers planning a North American compression-ignition invasion in the next couple years, humble Volkswagen has announced its plans to return the Jetta TDI to the diesel dogpile in the spring of 2008. Powered by a new 2.0-liter four-cylinder making 140 hp and 236 lb-ft of torque, and either a six-speed manual or DSG automated manual transmission, the 2008 Jetta TDI will be cleared for sale in all fifty states. Some of the earlier diesels to make it to our shores over the next few years will only be available in 45 states; California, Maine, Massachusetts, New York, and Vermont have all adopted stricter emissions regulations for diesels that bar some vehicles from entry. Using technology developed under the BlueTec cooperative formed by Mercedes-Benz and Volkswagen, the Jetta TDI will slip by these stricter regulations without resorting to a urea-based exhaust treatment, as many BlueTec labeled models will. Volkswagen’s Jetta TDI will manage without a urea injection system by using a NOx-storage catalyst. Like the particulate filters in place on this car as well as other diesels, this catalyst is basically a trap that temporarily holds the offensive emissions. Periodically, the engine will switch to an air-fuel mixture that will burn off the material in the traps VW knows about emissions, I do believe that VW offers more PZEV models than Honda or Toyota. I think if Honda had theirs ready for 50 state sale they would have it on the boat headed over. Now if GM would just offer a diesel instead of messing with hybrids they could sell some cars that make money.
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Replying to: gagrice (May 14, 2007 12:34 pm) Ford, Chevy, VW, and Subaru all have 3 PZEV rated cars for the 2007 model year. Honda and Toyota one each (hybrids excluded.) |
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Replying to: ledfoot1 (May 14, 2007 11:44 am) Our legeslators should step in and help invest towards these new technologies not just for consumers but also for the auto MFGrs. We need to move quickly. How else to move quickly buy giving tax breaks to auto MFGrs and consumers such that more of this technology can be utilized.
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Replying to: larsb (May 14, 2007 6:31 am)
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Replying to: carchatter1 (May 14, 2007 7:29 pm) I have not owned one, but their reputation for long term reliability is not good (from what I have read in the comparison forums). YMMV, of course. |
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Replying to: gagrice (May 14, 2007 12:34 pm) |
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Someone asked about Diesel hybrids...but why couldn't this new Tahoe (or anything for that matter,) be a Natural Gas Hybrid... The efficiency of the hybrid combined with the convenience (home fueling) and greenness (I know that's not a word) of natural gas. Anyone?
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Replying to: dylgeah (May 24, 2007 10:58 am) As for a diesel hybrid, don't hold your breath. The hybrid powertrain adds $3000-$4000 in cost to a vehicle. A clean diesel capable of meeting CARB and the upcoming EPA regulations adds $2000 to the cost of a vehicle. Put the two together and it just isn't economical. You can buy an awful lot of gasoline for $6000. Furthermore, hybrids don't add as much to a diesel as they do to a gasoline engine. Diesel engines are much more efficient when idling than gasoline engines. Much of the efficiency of gasoline hybrids is that it shuts down the gasoline engine when idling. But a diesel engine uses so little fuel when idling that this doesn't save you much. And you still have to haul around 400 lbs of batteries. You will see a number of new diesels here in the US in the coming years. Mercedes and VW will both have 50-state legal diesels in the 2008 model year. Ford is said to be working on a diesel of about 4 liter displacement for the F150, but no word on when it will arrive. Honda has announced a diesel for the coming Accord, but that won't arrive for a couple years. |
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Replying to: ledfoot1 (May 12, 2007 1:01 pm) When it finally does get to market the 2-Mode vs HSD will generate great blogger fodder. The forums will be 'smokin' with the speed of the back and forth regarding the merits of one over the other. But that is 9-12 months off at present. When the 2-Modes debut in the Fall it will be very interesting to see how the public actually receives them. IMO it would be a shame on us if we ignored GM's accomplishment. As noted previously this, heavy vehicles, is the sector that needs the most work in terms of increasing fuel efficiency. GM has stolen a march now by going to it's strength and put a working hybrid technology in it's mainline products. Toyota had stolen a march on the market by putting it's hybrid technology in its mainline products, midsized autos. Honda got there first with its technology which works best in small auto's. To GM's credit it can 'migrate' its technology to midsized vehicles easily according to reports. But will it perform as well and be as cost effective as the HSD in the Camry for example? To be determined. Toyota, barring some new advance, doesn't seem interested or able to 'migrate' its HSD to heavy vehicles. |
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Replying to: galvang (May 13, 2007 7:41 pm) Not to pick on you galvang because you have every right to purchase at the best price and protect your assets, but here are a few key questions for the GM faithful. 'Would you pay full sticker for the new GM Yukon 2-Mode ( Y2M ?)? No rebates.' 'Would you wait 60-90 days with a deposit holding your place as GM ramps up production?' 'Would you pay $3000-$4000 more for a Y2M than for a non-hybrid version of same?' |
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