[mcsoul]

Wow, the tech on this new chassis is pretty interesting. If they adopt this into kind of tech into GM sports cars, things are going to get very interesting. Can you imagine this thing with an LT-4? In it's present form it's the size of an S-Class or 7 series, that's a huge car for 3650 lbs.

[FenwickHockey65]

Supposedly a TTV8...

[ChefBorOzzy]

Yes, it's light, but it's 3,650 with RWD and the 2.0. The AWD 3.0TT is just a bit over 4,000 I believe, which is still very good.

[LesBaer]

I don't think GM has an AWD transmission that could reliably handle the torque (over a long period of time) from an LT4. AWD is also a tough sell in muscle/sports cars. It adds a ton of weight, cost and you lose a lot of power at the front trans axle.

Some cars allow you to disable it by pulling a fuse or through tuning device like a Diablo, but it would be the same as pulling the fuse. If stability control, traction control and ABS are tied to it, you'd lose literally everything...including control of your rear-end!

[Bhobbs]

Originally Posted by LesBaer

I don't think GM has an AWD transmission that could reliably handle the torque (over a long period of time) from an LT4. AWD is also a tough sell in muscle/sports cars. It adds a ton of weight, cost and you lose a lot of power at the front trans axle.

Some cars allow you to disable it by pulling a fuse or through tuning device like a Diablo, but it would be the same as pulling the fuse. If stability control, traction control and ABS are tied to it, you'd lose literally everything...including control of your rear-end!

GM claims the AWD system in the CT6 can hold up to 958 lb ft of torque.

[KMPrenger]

No matter how you slice it, even being around 4,000 for the TT model...this car is considerably lighter than other similarly sized cars that it competes with.

I say that's thanks to the Omega platform, which turns up the dial on weight savings even further than Alpha does (at least, that's my understanding)

Just a wild guess, but 2 door, RWD car like the Camaro eventually settled on an Omega like chassis, what could we expect then? A base car at 3,000 to 3,200 pounds? An SS at 3,400 to 3,500 pounds?

Sounds pretty sweet to me, assuming it doesn't drive the cost through the roof. At this point in time, I'm sure it would.

[shaffe]

Originally Posted by KMPrenger

No matter how you slice it, even being around 4,000 for the TT model...this car is considerably lighter than other similarly sized cars that it competes with.

I say that's thanks to the Omega platform, which turns up the dial on weight savings even further than Alpha does (at least, that's my understanding)

Just a wild guess, but 2 door, RWD car like the Camaro eventually settled on an Omega like chassis, what could we expect then? A base car at 3,000 to 3,200 pounds? An SS at 3,400 to 3,500 pounds?

Sounds pretty sweet to me, assuming it doesn't drive the cost through the roof. At this point in time, I'm sure it would.

An SS only weighing 100 pounds more than a Corvette I guess its possible but I imagine that would make it cost a pretty penny

[MEDISIN]

Originally Posted by KMPrenger

Just a wild guess, but 2 door, RWD car like the Camaro eventually settled on an Omega like chassis, what could we expect then? A base car at 3,000 to 3,200 pounds? An SS at 3,400 to 3,500 pounds?

Highly unlikely. As I understood, Alpha is positioned as the small-midsize performance oriented platform, while Omega is the large to X-large luxury oriented platform. I don't believe Omega can scale down to Camaro size (110" wheelbase), I could be wrong. The CT6 (122" wheelbase) is supposed to be the smaller sedan to ride on Omega with plans for a larger sedan as well as a 7-passenger luxury crossover in the future.

Another example - the Buick Avista concept rides on Alpha and has a 110" wheelbase. The Avenir concept is CT6 sized and rides on Omega.

The better question is, what would an Omega based Chevelle weigh...(think Challenger's 116" wheelbase)

[KMPrenger]

Originally Posted by MEDISIN

Highly unlikely. As I understood, Alpha is positioned as the small-midsize performance oriented platform, while Omega is the large to X-large luxury oriented platform. I don't believe Omega can scale down to Camaro size (110" wheelbase), I could be wrong. The CT6 (122" wheelbase) is supposed to be the smaller sedan to ride on Omega with plans for a larger sedan as well as a 7-passenger luxury crossover in the future.

Another example - the Buick Avista concept rides on Alpha and has a 110" wheelbase. The Avenir concept is CT6 sized and rides on Omega.

The better question is, what would an Omega based Chevelle weigh...(think Challenger's 116" wheelbase)

You are right...Omega is not designed for the small-midsize segment.

All my comment was, was just something based on "what ifs". That's it. It was not based on any truths.

But Omega is widely different than Alpha, or other platforms GM is currently using.

My "what if" was simply to say, what if they build an Omega-small for smaller cars. What could the weight be then?

But currently, I'm guessing the platform would be too expensive for use on non-premium vehicles.

[SSport16]

Yeah Omega is for large sized wheelbases, Alpha right now is perfect for the Camaro, Alpha can a little smaller as what is in the ATS, but you would really lose room inside though!

[SSport16]

Weight reduction is going to start becoming huge, as newer materials and technologies come about...and especially with these stupid new CAFE standards that are going to be impossible to meet in the next few years!

[DGthe3]

Originally Posted by KMPrenger

You are right...Omega is not designed for the small-midsize segment.

All my comment was, was just something based on "what ifs". That's it. It was not based on any truths.

But Omega is widely different than Alpha, or other platforms GM is currently using.

My "what if" was simply to say, what if they build an Omega-small for smaller cars. What could the weight be then?

But currently, I'm guessing the platform would be too expensive for use on non-premium vehicles.

Omega weighs what it does in part because it builds on the lessons learned when doing Alpha. Likewise, I'm sure that Alpha II (or whatever the future CT2 & CT4 will use ... ugh, I still hate the new naming scheme) is going to further build on what was done with Omega. Some of the techniques used are expensive, sure such as this magnificent casting:


but on the other hand, if one complex part replaces the assembly of several smaller parts the net difference isn't quite as big. Plus, look at the big picture. Building on previous knowledge (or better yet, recycling it) the costs are substantially less than what it took the first time around.