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Cadillac Escalade, Cadillac XLR, Cadillac STS, Automotive News
#4898 of 6195 STS/DTS-Zeta/Sigma combined
May 06, 2008 (3:53 am)
In order to cut cost, General Motors will merge the rear-wheel drive Zeta and Sigma platforms, a new report finds. The Zeta platform currently underpins the Pontiac G8 and the upcoming Chevrolet Camaro, while the Sigma platform is exclusively used for the Cadillac brand (CTS, SRX and STS).
According to Motor Trend, the first car to bow on the merged platform will be the 2011 Cadillac STS/DTS replacement. Following that car's launch, the new platform will underpin several other models.
#4899 of 6195 Re: STS/DTS-Zeta/Sigma combined [62vetteefp]
May 06, 2008 (5:41 am)
After a test drive this past weekend in the base G8, I can say this is a solid platform but I would prefer the sport suspension. The V-6 exhaust note was very raspy but the acoustics at cruise speed was whisper-quiet and no rattles, squeaks or noises to be heard. Steering was a little numb but acceptable compare to the past Pontiac Dinosaurs. Brakes were good but could use the meat of the GT. I'll try that one soon.
Not bad but still can be improved IMO.
#4900 of 6195 Re: STS/DTS-Zeta/Sigma combined [62vetteefp]
May 06, 2008 (6:41 am)
No surprise there; GM can't afford to have two separate platforms that do exactly the same thing. It also confirms what I suspected when the DOHC V8 was killed: that Cadillac is going to be a 300C with a better interior and not a true luxury car.
#4901 of 6195 Re: STS/DTS-Zeta/Sigma combined [bumpy]
May 06, 2008 (6:43 am)
Exactly. No US car is a true luxury car..let alone any GM.
#4902 of 6195 Re: STS/DTS-Zeta/Sigma combined [bumpy]
May 06, 2008 (8:03 am)
From what I have read the Cadillacs will use the basic floorpan architecture and cowl but use specific aluminum suspension pieces. It will have a different type suspension than the non Cadillacs.
#4903 of 6195 Re: STS/DTS-Zeta/Sigma combined [bumpy]
May 07, 2008 (5:28 am)
Without a full product setup like the Toyota/Lexus combo to compete with the Germans, no US manufacturer at this point has the product breadth and depth from the top to the bottom to really stand out in the North American marketplace, even though the capacity to do so is there. GM's canceling of the DOHC Ultra V-8 shows more lack of willpower sadly than any technical issues.
#4904 of 6195 Re: STS/DTS-Zeta/Sigma combined [aldw]
May 07, 2008 (7:05 am)
GM's canceling of the DOHC Ultra V-8 shows more lack of willpower sadly than any technical issues.
Certainly not lack of willpower. GM does not pay any gaz guzzler fines and has decided not ever to. Most all those V8 vehicles in the lux segments pay CAFE fines and are happy to do it. MB spent $30 million in fines in 2006. I know they (bmw/MB) have said they will use new technology to increase mpg but it will take a lot too almost double their vehicles mileage. This is assuming that most of their cars will have to get over 36 mpg to meet CAFE. Of course their are their diesels but the conversation here is about GM not building a premium gas V8.
http://www.autoblog.com/2007/12/31/nhtsa-releases-06-cafe-fines-daimler-chrysler- - -takes-cake/
GM has decided that with the big jump in CAFE they cannot afford to develop a new engine platform that will either not be able to be used in a few years or take the fines. I would think they would be better off developing a premium diesel.
I guess the big question is will congress increase the fines on those who really cross the line with fines year after year? On one hand you could say go ahead and fine the vehicles and let the customers pay the fines (which is what most in government do now when they buy their lux vehicles and they certaqinly do not want their BMW's taken away). Or get really serious about it and make the fine so high that few can afford to pay it. Again I doubt that will happen because that would effect those in power.
So in the end there are just too many unknowns out there. GM will utilize the 3.6L platform and use forced induction and hybrid technology to increase power and gas mileage. And hopefully get a diesel.
#4905 of 6195 Re: STS/DTS-Zeta/Sigma combined [62vetteefp]
May 07, 2008 (9:25 am)
The obvious solution is an electric drive with motor generator which GM proposed with the Volt concept car. I think this is the future at GM if they can make it work.
May 09, 2008 (4:52 am)
"Certainly not lack of willpower. GM does not pay any gaz guzzler fines and has decided not ever to"
Caddy STS-v & STS V8 AWD both are assessed the
Gas Guzzler Tax...
#4907 of 6195 Re: GGT \ GM ?? [rayainsw]
May 09, 2008 (4:56 am)
I don't remember paying a guzzler tax on my DTS. Maybe I didn't look closely or it doesn't have one.